The team investigates when a homeowner working in his garden finds a skeleton. The pathologist dates the death to 1967 and says it was definitely a murder. The current owners of the house have only been there for a relatively short time and it had been left derelict for many years. The police uncover a connection with Daniel Lennon who, 40 years ago, had killed his parents and was sent to a secure psychiatric institution from which he has only recently escaped. It is apparent that Lennon is familiar with the house and may have lived there at the time of the killing. Meanwhile, Boyd and Grace Foley have a row and she walks out.
—garykmcd