Unholy Matrimony

S1 E20: In the explosive season finale, an unexpected engagement leads to a quickly planned wedding, causing suspicions that something is awry. Sutton encourages Emma to show Kristin what they found in Rebecca's (recurring guest star CHARISMA CARPENTER) house, and Ethan makes a discovery that changes the game. Meanwhile, a shocking revelation leads to major repercussions in the Mercer household.