A Blueprint for Murder

“He kissed her into the most sacred confession a woman can make!”

Whitney "Cam" Cameron (Joseph Cotten) wants to know how his brother died, and he wants to be wrong about the woman he suspects. That woman is Lynn (Jean Peters), his brother's widow, who now looks to be in line for the estate after her stepchild Polly's death is attributed to poison. Andrew L. Stone sets Cam's growing doubt against his pull toward Lynn, so every dinner and every conversation becomes a test of whether he can trust her.