Standing in for an ill colleague renowned New York psychiatrist Sam Foster is confronted with disturbed art student Henry Letham. Seemingly inspired by his idol, a painter (in)famous for committing suicide on his 21st birthday, Henry announces he will shoot himself "Saturday at midnight" - the moment he turns 21. Foster, once having saved his suicidal girlfriend Lila, takes the threat seriously, but fails to simply have Henry taken into custody. Instead, while trying to track his patient down, Sam is gradually being drawn into the world of Henry's obsessions.
