Thanksgiving has arrived and despite Karen's inclinations to keep this year's holiday festivities as simple as possible, things quickly get out of hand.
While examining Grace for the flu, a doctor looks at Fran's throat and orders her to have her tonsils out; Maxwell stresses after Fran says that she loves him.
Maxwell's sister arrives at the Sheffield home for a visit and decides to use the occasion to organize a wedding with her fiancé, a wealthy English duke.
C.C. attempts to ensure a positive review for Maxwell's new play by having Fran chaperone a play-date between Grace and the son of a prominent film critic.
Dottie and Goodwin start to question Bob's leadership after it seems like he can't handle an influx of business; success keeps Bob away from home and Abishola.
An elderly man is in need of someone to fund his latest movie idea, which leads to Mark meeting a beautiful woman that lives in the man's neighborhood.
The director of a government institute that only employs scientific geniuses is informed that a colleague knows his son plagiarized a dead mans theory.
An electronics expert finds out that his mother in law, who runs the firm where he works, is blackmailing him to that he'll resign, and has her killed.
A psychiatrist, who specializes in hypnosis, murders his mistress' husband and puts her under his spell so that she'll lie to the police and cover for him.
Daphne tries to host an art unveiling party without anyone's help, but it turns out to be a disaster, which Frasier remarks makes her an official Crane.
Kenny seeks Frasier's advice after his divorce is final but finds solace by Martin's advice to get out more in order to take his mind off his problems.
Columbo is tasked with investigating the murder of a successful sex therapist's former partner and lover and soon discovers a plot of infidelity and revenge.
Columbo investigates a paramilitary academy owner's death, who stepped on a landmine, but the detective is not convinced that the owner's death was accidental.