Straw Dog: Part 1 (S05E07)

Back in 1979, at the start of her career as a Forensic Profiler, Grace assisted in the arrest and conviction of Tony Greene for the murder and mutilation of young men. Thirty years later, Grace is called to give evidence at Tony Greene's Appeal, at the same time as a copycat killer seems to have appeared. Grace receives a chilling message from the new killer. (iTunes)