Season 1 Episode 2
A greedy philandering wife (Mary Ellen Trainor) kills her second husband (Marshall Bell) for his insurance money. Upon getting rid of the body, she is unexpectedly attacked by a hideous escaped mental patient (Larry Drake) dressed as Santa Claus who has been going around killing women. She soon realizes that her own young daughter is in complete danger from within the horrific situation.
Source: Vault of Horror #35