On the set of a popular daytime soap opera 'Mile High', actress Kris Buckner is being forced off by co-star Mark Stratton. When she says that she'll 'kill him before she leaves the show', she makes herself the prime suspect when Stratton is murdered by someone poisoning him. As an old friend, Perry Mason comes to the help of Kris and agrees to defend her. Meanwhile Ken goes in search of information with the help of fan of the show.

Raymond Burr
Perry Mason

Barbara Hale
Della Street

William R. Moses
Ken Malansky

Linda Dano
Sandra Drake

Stuart Whitman
Alex Straub

Genie Francis
Kris Buckner

Sean Kanan
Mark Stratton
Kurt Soderstrom
Guard

Mark Boudler
Officer Jolly (uncredited)
Wendelin Harston
Ticket Clerk

Richard Riehle
Mort Aberdine

Stuart Damon
Alex Straub

Spider
Spider

Athos 2643
Athos 2643

Rope
Rope

The Bricklayers
The Bricklayers

The Spiral
The Spiral

The Devil and Ms. D
The Devil and Ms. D

The Brave
The Brave

The Homesman
The Homesman

The Iron Giant
The Iron Giant

For Love of the Game
For Love of the Game

Corinna Darling
Corinna Darling

Dangerous Women
Dangerous Women