McMillan & Wife (1971)

S1E3 Husbands, Wives, and Killers

Title: Spouses, Secrets, and Suspicion Plot: At a lavish masked gala, Mac and Sally find themselves captivated by a priceless necklace on display. As they mingle with other guests, tension rises when the jewel goes missing, leading them to suspect everyone around them. With hidden identities and ulterior motives, Mac and Sally must navigate a web of deceit while trying to uncover the truth behind the vanishing necklace before the night ends in chaos.