Rollins' friend from her Gamblers Anonymous meeting claims she was raped by her lover, but the case is challenging to prove. Things get further complicated when a murder occurs, and Rollins is caught in the middle between her squad and someone who she thought was her friend. When Barba is forced to reveal some of Rollins' personal life on the stand, it proves too much for her to handle. Meanwhile, Benson announces her promotion to sergeant and Cassidy is reinstated as a detective and barba helps rainbow with the baby room