After eluding capture and disappearing eight years ago, the famed Yin Yang serial killer is back, and he's set his sights on Shawn.

A serial killer targets Shawn using scenarios from classic Hitchcock films.

The Yin/Yang trilogy comes to a thrilling close as Shawn and Gus race to save a woman kidnapped by Yin. Only this time, they are forced to use Yang's knowledge of Yin to solve the case by allowing her to accompany them on the investigation.

This musical extravaganza follows Shawn and Gus' search for an escaped playwright who was declared criminally insane following a suspicious fire. Complicating matters, a person who may have important evidence is an enemy from Shawn's past.