Moon River.

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.