When ex-soldier Maya sees her murdered husband on a secret nanny cam, she uncovers a deadly conspiracy that stretches deep into the past.

Haunted by an unsolved murder, brilliant but disgraced London police detective John Luther breaks out of prison to hunt down a sadistic serial killer.

While searching for her missing mother, intrepid teen Enola Holmes uses her sleuthing skills to outsmart big brother Sherlock and help a runaway lord.