As Roy and Branson take steps to verify Cassian's intel aboutSandy's murder, the body of student Charlie Downing is foundin a sea lock, and Grace must find out who wanted this youngwoman dead. As the team investigates the campus, it becomesclear that the university harbours secrets that could beconnected to Charlie's death. Grace soon has his sights set ona killer who will stop at nothing to prevent one particulartruth from getting out.