Doubt

CBS | 8:00 pm

Billy’s (Steven Pasquale) sister could prove to be the key to his defense in the new episode "Where Do We Go From Here." The attorneys listen to tapes of the sibling’s therapy sessions, hoping to hear something that will help their case. Sadie (Katherine Heigl) also helps Isaiah’s (Elliott Gould) daughter (guest star Paula Marshall) with her divorce. Cameron (Laverne Cox) works on securing parole for Carolyn (Judith Light). Another new episode follows.