S2, E2: Ruth has been arrested for Jason's murder. Zailer tells her that police know Ruth was in Jason's house on the day he died, prompting Ruth to admit that they had sex -- but she claims that he was alive when she left. Later, when releasing Ruth on bail, Zailer tells her that she has been to see Aidan and has told him about Ruth and Jason, and that Aidan has told police that the woman Ruth saw him with is his stepsister, Mary Trelease. As the investigation continues, Ruth and Aidan question whether they really know each other and wonder what other secrets await discovery.