Cul-de-sac is a 1966 British black comedy psychological thriller film directed by Roman Polanski, written by Polanski and Gérard Brach, and starring Donald Pleasence, Françoise Dorléac, Lionel Stander, Jack MacGowran, Iain Quarrier, Geoffrey Sumner, Renée Houston, William Franklyn, Trevor Delaney, and Marie Kean. It also features Jacqueline Bisset (credited as Jackie Bisset) in a small role, in her second film appearance. Polanski's second English-language feature, it follows two injured American gangsters who take refuge in the remote island castle of a young British couple in the north of England, spurring a series of mind games and violent altercations.