Sister's Keeper

Ellen's sister Lauren unexpectedly arrives at the house and decides to stays while unaware of the current situation. Hoffman in his investigation of the disappearance of Nurse Angela discovers Archer's involvement and confronts Duncan about his lies. Meanwhile Kramer discovers a way that can get Sandrine the money that she needs with dire consequences by robbing a high stakes poker game and Morgan visits a OBGYN in a routine pregnancy checkup.