As police investigate a mentally ill man suspected of murdering a mother on a playground, anonymous messages suggest all is not what it seems.

1. Episode 1 46m A seemingly random murder of a mother on a busy playground rattles an English town. Cop Bobby Day starts receiving anonymous packages with clues.

2. Episode 2 45m Alec invites Nina to his mother's party. A DVD sent by the ghost detective leads Bobby and Alec to investigate in secret -- with grave consequences.

3. Episode 3 44m The ghost detective visits Alec in the hospital. Sheri recalls a detail from her last night with Ruben. A post office clerk provides a crucial lead.

4. Episode 4 44m Dr. Crowley tries to blackmail Lucy. Nina discovers the ghost detective's lair. In Düsseldorf, a shady associate reveals a motive for Ruben's murder.

5. Episode 5 43m The ghost detective offers the police a deal. Nina drops a bombshell. The man in the hoodie is captured. Bobby spots Marquita in a surprising place.

6. Episode 6 45m A code name found in Angela's typed document leads the police to discover what Ruben was involved in. Photos of Lucy's past push Bobby over the edge.

7. Episode 7 45m Bobby returns from Düsseldorf and seeks out Lucy. Dr. Crowley is seen hiding a phone. A nurse from the drug trial tells Nina a chilling story.