3rd Rock from the Sun (1996)

S5E4 Dial M for Dick

Title: Dial M for Dick Plot: Mary hosts a murder mystery weekend, hoping to create a lively atmosphere for the Solomons. Unfortunately, she succumbs to food poisoning and retreats to her room. Meanwhile, the Solomons are taken aback when the first murder occurs, mistaking it for a genuine crime. Frustrated by the seemingly indifferent approach of Scotland Yard's "Inspector McAffrey," they resolve to take matters into their own hands and crack the case themselves.