Basic Instinct: A former rock star, Johnny Boz, is brutally killed during sex, and the case is assigned to detective Nick Curran (Michael Douglas) of the SFPD. During the investigation, Nick meets Catherine Tramell (Sharon Stone), a crime novelist who was Boz's girlfriend when he died. Catherine proves to be a very clever and manipulative woman, and though Nick is more or less convinced that she murdered Boz, he is unable to find any evidence. Later, when Nilsen, Nick's rival in the police, is killed, Nick suspects of Catherine's involvement in it. He then starts to play a dangerous lust-filled mind game with Catherine to nail her, but as their relationship progresses, the body count rises and contradicting evidences force Nick to start questioning his own suspicions about Catherine's guilt.
The Game: Nicholas Van Orton (Michael Douglas) is a very wealthy San Francisco banker, but he is an absolute loner, even spending his birthday alone. In the year of his 48th birthday (the age his father committed suicide) his brother Conrad (Sean Penn), who has gone long ago and surrendered to addictions of all kinds, suddenly returns and gives Nicholas a card giving him entry to unusual entertainment provided by something called Consumer Recreation Services (CRS). Giving in to curiosity, Nicholas visits CRS and all kinds of weird and bad things start to happen to him.