Cheers (1982)

S4E14 Suspicion

Title: Doubt Plot: Diane sets up a social experiment at Cheers, inviting an outsider to observe the group's reactions to someone unfamiliar. However, she inadvertently becomes the focal point of suspicion herself as she anxiously anticipates the gang's response to her little scheme. As the tension builds, Diane finds herself caught in her own web of paranoia, leading to unexpected consequences.