John Doe

A man with amnesia assists Seattle police with a missing person's case, using his encyclopedic knowledge of the world.

Doe investigates a gory murder case, which begins when a swimmer dives into a pool filled with human blood.

While investigating a pair of mutilation murders, Doe asks a psychiatrist to help him recover his lost memories.

A 30-year-old murder case, in which the killer is a dead ringer for Doe, contains some clues to his identity.

Doe finds another man who can't remember who he is, but the man disappears, and the search for him leads Doe into the clutches of a drug-crazed, murderous doctor.

An avant-garde artist who's the primary suspect in an art museum jewel theft turns out to be a friend of Karen's.