Shallow Grave (1994)

Cautionary thriller. Three smug Edinburgh roommates find the stranger they have just taken in dead, with a suitcase full of money in his room, and decide to dispose of him and keep it. Danny Boyle's first feature is the nastiest movie here and the funniest about it, all black comedy and sharp interiors. Ewan McGregor, Christopher Eccleston and Kerry Fox play friends whose mutual contempt was there before the cash; the money just gives it a reason. Choose it if you like your what-would-you-do stories with a mean streak, and if you have ever wondered how well you really know the people you live with.