When Alexandra returns from her stint on the London stage to find her husband mysteriously dead of a heart attack and her female friends ominously invested in smoothing out all the complications of the tragedy, she begins to be suspicious. At first she attributes this to grief, then to paranoia. But she soon finds herself starting to crack, crank-calling her friends' psychiatrist, attacking people with kitchen chairs and breaking into their houses, searching furiously for evidence to confirm her husband's rampant adultery and her own worst fears.