Arrow Media's two-hour film takes an in-depth look at an iconic American serial killer case from the 1990s.

In 1995 when the body of a woman is found in Clark County, Washington, local detectives quickly apprehend long-haul truck driver Keith Jesperson. A series of increasingly disturbing revelations suggest Jesperson’s true identity is that of the serial murderer known only by his nickname, the Happy Face Killer. Detective Rick Buckner plays a deadly game of cat and mouse with Jesperson to prove he is the Happy Face Killer and make sure he is apprehended before he kills again.