Making Angels Laugh

Rita's father had been fond of saying, "If you want to make the Holy Angels laugh, just tell them your plans." Now, the widowed Dr. Margarita Zornova's grown sons and medical practice partner have conspired to force Rita to take her first real vacation in thirteen years, starting by sending to her 40th High School reunion, continuing by enticing her into a cruise with two of her sons, their wives, and her elderly mother. Did anyone hear that laughter?