Murder 101: The Locked Room Mystery (2008)

IMDB
Genre : Crime, Drama, Mystery, TV Movie
TRAILER
Director : David S. Cass Sr
Stars : Dick Van Dyke, Barry Van Dyke, Shane Van Dyke, Mia Cottet
Plot : Criminology professor Jonathan Maxwell investigates a murder at a new age retreat where the leader is killed in a locked room surrounded by people in a deep trance.