Mary and Loretta sneak into Muriel's and look at Muriel's scar while she's napping. Cathy visits Mary and reveals plans to go away with Dennis for a weekend tryst. Mary and Tom quarrel about Mona. Feeling that she's losing control, Mary phones Roberta for help. Roberta encourages Mary to join STET, and Mary realizes that Dennis is two-timing Cathy with Roberta.—Skip Eastport