9x7 - Perry Mason

.An old Army buddy of restauranteur Terrence Clay, Lucas Tolliver, arrives in California from Oklahoma to meet the woman he was matched up with by a computer dating service. The woman, Miliicent Barton, is supposedly a rich widow. Lucas has money too having inherited it from his previous wife who died under mysterious circumstances. This doesn't prevent Millie from marrying Lucas but she dies at a party after drinking poisoned lemonade supposedly provided to her by Lucas. This one is a tough row to hoe for Perry.