Murphy is forced to take on a number of different personalities when he goes undercover; whether hunting for a serial killer who is stalking London's West End, or searching to discover whether racist bullying led to promising young police officer committing suicide.Jack's Back: The hunt for a serial killer who is stalking London's West End takes on a personal dimension for Murphy when tragedy strikes. The killer is targeting young women who have stayed at one particular hostel for homeless people, but what is their connection with the latest victim, the star of a West End musical about Jack the Ripper? Bent Moon On The Rise: When a promising young police officer, Parmer, commits suicide, Murphy is sent undercover to find out if he was a victim of racist bullying. Parmer's old squad is lead by the charismatic D.I. Winters. Parmer's old colleagues are shocked by his death but they're also hiding a secret. Could this be the key to understanding why he died?Ringers: Murphy is recruited to