A Blueprint for Murder

Whitney Cameron is in a quandary: he's attracted to his beautiful sister-in-law, Lynn, but also harbors serious suspicions about her. Her husband, Cameron's brother, died under mysterious circumstances, and now that the death of her stepchild, Polly, has been attributed to poisoning, he suspects that Lynn is after his late brother's estate, and killing everyone in her way.

Cast

Joseph Cotten

Whitney 'Cam' Cameron

Jean Peters

Lynn Cameron

Gary Merrill

Fred Sargent

Catherine McLeod

Maggie Sargent

Jack Kruschen

Harold Y. Cole

Barney Phillips

Detective Captain Pringle

Freddy Ridgeway

Doug Cameron

Harry Carter

Wheeler (uncredited)

James Gonzalez

Joe Cunningham (uncredited)

Ed Hinton

Ed (uncredited)