An ocean cruise is set for murder involving several couples, who believe they've won a trip. Unbeknownst to them they've all been lured on the cruise to be murdered by an unknown person.... It is up to Dr. Burke to piece together the clues that connect all these couples together and before more murders occur.
The Love Boat meets And Then There Were None courtesy of Aaron Spelling. Like The Love Boat we have a variety of guests, all couples, who have their problems; jealous gravel-voiced Polly Bergen is married to womaniser Richard Long, a dissatisfied Tom Bosley is married to oblivious Celeste Holm, and the baby-crazy Kate Jackson is married to not-baby-crazy Edward Albert. Doctor-at-large Michael Constantine and captain Cesare Danova fill out the ship's crew.
I sort of guessed who the murderer is, but it's fun getting there. It's light-hearted, but still has some suspense with its air of a calm-before-the storm. Also there's some histrionics from the assortment of characters; It's nicely constructed and ends well with a nice twist.