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 and Jack MacGowran, with Iain Quarrier, Geoffrey Sumner, Renée Houston, William Franklyn, Marie Kean and Trevor Delaney in ing roles. It also features Jacqueline Bisset in a small role, in her second film appearance. Polanski's second English-language feature, it follows two injured 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.