Set in Acapulco, this made-for-television mystery based on Agatha Christie's book finds brilliant Belgian sleuth Hercule Poirot (Peter Ustinov) swept up in a pair of murder cases centered on two dinner party guests whose toes go up. They're the victims of poisoning at the home of retired American actor Charles Cartwright (Tony Curtis). Poirot springs into action to ferret out the killer. Emma Samms co-stars.