As the star of Saint Nick, a new holiday-themed Broadway play, Yule Von Zell is under immense pressure. His mental stability is teetering on the brink. A murder accusation is hanging over Yule's head, and his producer is threatening to enforce the "sanity clause" in his contract.

To complicate matters, the six surviving Von Zell siblings suspect a vicious killer may be targeting their show business family!

Enter theatrical ad execs Vic Senso and Bettie Balboa, who enlist their friend, NYPD Detective Renny Clements, to help clear their famous client's name. They once again employ the talents of high society psychic, Mizz Mitzi, along with an inner-circle of savvy theater contacts, to unravel the secrets of the Christmas-obsessed family.