Triangle at Rhodes (S01E06)

Hercule Poirot is holidaying at the Palace Hotel in Rhodes. He and his fellow guests are interested in the arrival of famous and beautiful divorcee Valentine, accompanied by her fifth husband. They can't help but notice how Valentine immediately starts flirting with a good looking man who arrives the same day - much to the public displeasure of her husband. Just as Poirot finishes his holiday and prepares to leave he is called back to the hotel. After drinking a pink gin with the other guests, Valentine is dead. (iTunes)