Kristen, David and Ben are called to investigate an insidiously addictive Christmas song that's spreading among an increasing number of students, and the dangerous relationship between online influencers and their impressionable young followers.
Katja Herbers
Dr Kristen Bouchard
Aasif Mandvi
Ben Shakir
Michael Emerson
Dr Leland Townsend
Brooklyn Shuck
Lynn Bouchard
Skylar Gray
Lila Bouchard
Maddy Crocco
Lexis Bouchard
Dalya Knapp
Laura Bouchard
Andrea Martin
Sister Andrea
Kurt Fuller
Dr. Kurt Boggs
Christine Lahti
Sheryl Luria
Marti Matulis
The Manager / Quareen / Hairy Demon