House of the Long Shadows is a 1983 British comedy horror film directed by Pete Walker. It is notable for featuring four iconic horror film stars (Vincent Price, Christopher Lee, Peter Cushing and John Carradine) together for the first and only time. The screenplay by Michael Armstrong is based on the 1913 novel Seven Keys to Baldpate by Earl Derr Biggers, which was also adapted into a famous play that gave birth in turn to several films.