CBS

Season 4: Episode 16 - Three Girls And an Urn

Three Girls And an Urn: When Peggy's childhood friend, Kay, comes home for her mom's funeral, Molly instantly hits it off and befriends her. While spending the afternoon at the museum, Molly and Kay are caught in the act of friendship by Peggy. Feelings of betrayal open old wounds between Peggy and Kay leading to an argument. Feeling guilty about what she’s done to Peggy and how Mike is suffering as a result, Molly sacrifices her friendship with Kay with the hope of bringing Kay and Peggy back together.