Uncover chilling secrets from his forgotten past. Watch the trailer for 'Sleeping Dogs'. Streaming on Prime Video June 21. Synopsis: Synopsis: Roy Freeman, in the wake of a cutting-edge Alzheimer’s treatment, is tasked with re-examining a brutal murder case from his past — the grisly murder of a college professor. Intrigued and fighting to regain his memory, Roy enlists his former partner to help him revive the investigation. This time though, things unfold very differently when they encounter a