Here we collected the best whodunit movies in order of popularity
Your Vice Is a Locked Room and Only I Have the Key
A burned out, abusive, alcoholic writer named Oliviero lives with his wife and mother's black cat at their estate in Venice, along with his late mother's mysterious black cat, Satan. In order to pass ...
The Bird with the Crystal Plumage
Sam Dalmas, an American writer living in Rome, witnessed a violent struggle between a young woman and a black-coated figure in an art gallery while walking home one evening. Dalmas tried to intervene ...
Four Flies on Grey Velvet
Roberto, a drummer in a rock band, is followed by a mysterious man after receiving strange phone calls. He tried to catch up with his persecutor but in the struggle he accidentally stabbed him. He run...
A Quiet Place to Kill
A race-car driver who's down on her luck is invited by her ex-husband's wife to stay at their plush villa. The two women form a bond, and it's not long before their mutual dislike for the husband culm...
A musician witnesses the murder of a famous psychic and then teams up with a fiesty reporter to find the killer while avoiding attempts on their lives by the unseen killer bent on keeping a dark secre...
The Card Player
Policewoman Anna Mari is forced to play a dangerous game with the title serial killer. If she loses, she witnesses the maniac's tortured victims having their throats cut in explicit close-up detail vi...
The Cat o' Nine Tails
A reporter and a retired journalist are trying to solve a series of murders. The crimes are connected to secret research done by a pharmaceutical company. The two are going to become targets of the ki...
The Case of the Bloody Iris
A high-rise apartment populated by models, nightclub dancers and call girls becomes the focus of a mysterious serial killer. When a young model named Jennifer and her friend Marilyn move into one of t...
In September 1938 a British detective comes to a small French coastal town in order to investigate the death of a colleague. Prime suspects are the members of English aristocratic family with plenty o...
The Fourth Victim
A man's wife is found suspiciously drowned in their swimming pool and because his two previous wives also died strange deaths he is charged with murder and only gets off because his motherly housekeep...
Agatha and the Truth of Murder
England, December 1926. Although her personal life is in tatters, the famous writer Agatha Christie decides to leave everything behind to help unravel an unsolved murder committed on a train six years...
The Forbidden Photos of a Lady Above Suspicion
The wife of a financially struggling businessman is blackmailed by a mysterious man into having a sadistic relationship with him, or he will release damning evidence that suggests that her husband is ...
The Bloodstained Butterfly
When a young female student is savagely killed in a park during a thunderstorm, the culprit seems obvious: TV sports personality Alessandro Marchi, seen fleeing the scene of the crime by numerous eye...
The Two Faces of Fear
Doctor Miguel Azzini was shot to death. Elena Carli, his former mistress and owner of the clinic where he worked, Roberto Carli, her surgeon husband, Doctor Paula Lombardo, and the clinic's administra...
The Mighty Quinn
Police chief Xavier Quinn investigates the gruesome murder of Donald Pater, one of the wealthiest residents on a Caribbean island. He was found decapitated in his Jacuzzi. Although the local political...
Five Dolls for an August Moon
A group of friends get together in a remote Mediterranean island for a weekend of relaxation. They start turning up dead one after the other. The group gets together to figure out the identity of the ...
John Figg has a great career and a gorgeous fiancée. When he inherits a nice house in a quiet neighborhood, he finally starts to feel like his life is coming together. Trouble arises, however, when Jo...
The Big Frozen Gumshoe
Detective Dick is a 1940's private investigator who is frozen by a mysterious stranger for sixty-nine years. He defrosts in the modern world where he has to solve the case that put him on ice.
Death Carries a Cane
Ketty,a photographer living in Rome,accidentally witnesses the murder of a young woman at the hands of a razor-wielding black-gloved killer.Ketty and her fiance,Alberto,go to the police-only to learn ...
Michael is a successful actor, but he has a scandal in his past: at a tender age he knifed his father to death. He and his girlfriend Deborah go to his mother's for the weekend, and are joined by the ...
Jim Preston receives a yacht as an anniversary present from his wealthy wife Ellen. He plans to kill her for her entire fortune. To carry out the murder plan, he makes a contact with Mike, a crazed ra...
Thriller in Milan, Italy, where a serial killer uses scissors to assassinate top-models. A Yellowstone park ranger, from Usa, arrives in the city to protect his sister, but she has vanished. The guy w...
Secret of the Sphinx
Shot on location in Egypt, the story unfurls like an Italian Giallo as a group of people meet under strange circumstances, and one by one they are murdered. Gold is missing so you suspect a thief is t...
Giallo in Venice
Venice: The bodies of a married couple, Flavia and Fabio, are discovered on the dockside. She has drowned and he has been stabbed to death with a large pair of scissors. Marzia, Flavia's best frien...
A speed-boat racer suffers amnesia after an boating accident and goes to his isolated villa to recuperate. His relationship with his wife is troubled, so he starts an affair (sort of) with the another...
Eyes of Crystal
While hunting a cultured, intelligent and vicious psychopath, Inspector Amaldi comes face to face with the physical and moral decay of his city as well as the ghosts of his own past.
Love and Death in the Garden of the Gods
An old professor rents a mysterious old villa, and finds a tape recorded by a previous occupant, detailing her debauched lifestyle and the events leading to her murder.
Deadly Secrets by the Lake
A decorated NYPD detective returns to her hometown after her sister is charged with the murder of her boss and attempts to make amends with her estranged family while exposing the dark underbelly of a...
Murders in the Rue Morgue
Cesar Charron owned a theater in Paris in the beginning of the 20th century where he performed a play called "Murders in the Rue Morgue" with his wife Madeleine Charron, who has terrible nightmares. C...
Too Beautiful to Die
Alex, the owner of the agency invited the models to the party. During the party, Alex is playing games in his computer and it looks like the girls have the house to themselves, but there is another gu...
Death Falls Lightly
A drug trafficker discovers his wife dead with her throat cut. He has no alibi so he takes his mistress to an abandoned hotel. As they become claustrophobic, the panicked criminal discovers more murde...
The Scorpion with Two Tails
An archeologist's wife has recurring nightmares about ritual killings in an Etruscan tomb while her husband is away excavating a lost temple. After a phone call where she is forced to listen to him be...
Town on Trial
When an attractive young girl is murdered, suspicion falls on several members of the local tennis club. It falls to Police Inspector Halloran to sort out all the red herrings, and finally after a conf...
One year ago on November 2, seven people sat down to dinner at the Luxembourg. One of them, Rosemary Barton, never got up. She was thought to have committed suicide due to post-flu depression.
Seven Deaths in the Cat's Eye
In a small Scottish village, there are many bodies that have been murdered. The residents of a nearby castle are believed to be haunted by a curse involving a killer cat.
Oasis of Fear
Dick and Ingrid, two young sexually free Hippies, finance their travels by selling naked snaps of each other until their plan is brought to an abrupt end by the Police. Forced to flee on the run, the ...
Transplant of a Brain
An affluent judge with an incurable brain disease with only months to live decides to become the guinea pig for a new brain transplant technique. The operation is a success, but the unfortunate brain ...