Moon River takes place in Glendale, California and follows the story of Richard Waters and his film crew. On the night of their first day of filming, Richard and his team throw a party where their production assistant, Peter, is murdered. After another murder, the people of Glendale, as well as the police, conclude Richard must be the one behind the murders. It's up to Richard to solve the case before he finds himself killed or in prison.
Suffering from mental illness and opiate addiction, Charli struggles to hold it all together, often leaving behind a wake of destruction. As Charli begins to lose her fragile grip on reality, her demons lead her down a dangerous path with no way out.
An elite group of spies, called Pigeons, deliver messages secured by a phrase. A former Pigeon, bent on revenge, turns an agent on his maker. Now the messenger becomes a deadly message.