The Lying Game S01 E20 Unholy Matrimony

"A lost twin. A dark secret. A deadly game."

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 house. And Ethan makes a discovery that changes the game. Meanwhile, a shocking revelation leads to major repercussions in the Mercer household.