David Katz is a world famous magician who comes to Denver with his troupe to perform in a charity benefitting disabled children. Also there are Perry and Della, as all three are supporters of the charity. Kate Ford, an assistant with an arrogant attitude, tells David that she is, from now on, going to be the star of an illusion in which an assistant is raised in a glass coffin only to disappear when the coffin is opened up in mid-air (while the assistant climbs out before the coffin is raised.) After a one night stand with David, Kate is pregnant and decides to blackmail David. Katz and his wife Judy can't have children so this comes as a double blow to them. However Kate's attitude creates much animosity from the rest of the troupe. At the gala, the glass coffin is raised but when it opens Kate's dead body falls to the ground - strangled. While Perry and Della set out to find the killer, Ken and PI Terry Weidner set out to find out more about Kate. and discover that, for some reason, nobody in Kate's home town is willing to talk about her...Perry Mason: The Case of the Glass Coffin featuring Raymond Burr and Barbara Hale is not currently available to stream, rent, or buy but you can add it to your want to see list for updates. It's a crime and drama movie with a better than average IMDb audience rating of 7.0 (400 votes).