Fermat's Room (2007)

A homicide detective teams up with a criminal profiler to catch a serial killer whose crimes are inspired by the children's game, Hangman.

Catherine is a woman in her late twenties who is strongly devoted to her father, Robert, a brilliant and well-known mathematician whose grip on reality is beginning to slip away. As Robert descends into madness, Catherine begins to wonder if she may have inherited her father's mental illness along with his mathematical genius.

Six people unwittingly find themselves locked in another series of escape rooms, slowly uncovering what they have in common to survive... and discovering they've all played the games before.

A mathematical genius discovers a link between numbers and reality, and thus believes he can predict the future.

As a math savant uncooks the books for a new client, the Treasury Department closes in on his activities and the body count starts to rise.

At Oxford University, a professor and a grad student work together to try and stop a potential series of murders seemingly linked by mathematical symbols.

In a massive, mysterious chamber, fifty strangers awaken to find themselves trapped with no memory of how they got there. Organized in an inward-facing circle and unable to move, they quickly learn that every two minutes, one of them must die…executed by a strange device in the center of the room.

When Simon awakens in the hospital after surviving a near-fatal accident, amnesia has erased the last two years from his memory. He learns that his brother was killed, he has married a woman he doesn't remember and he's haunted by strange visions of the woman he loved.

When Kimberly has a violent premonition of a highway pileup she blocks the freeway, keeping a few others meant to die, safe...Or are they? The survivors mysteriously start dying and it's up to Kimberly to stop it before she's next.

Animal control officer Walter Sparrow becomes obsessed with a novel that he believes was written about him, as more and more similarities between himself and his literary alter ego seem to arise.