The Case of the Lost Last Act Perry Mason : Season 2 Episode 21

Playwright Ernest Royce is found shot to death in the same manner as a character in one of his unproduced plays. The play dealt with characters very close to real people and the real life murder of a New York underworld figure years before. Perry's client, Frank Brooks, is charged with Royce's murder and Perry must find the missing final act of the play in order to clear Brooks.