Stan and Vera, a childless couple, share a tense, dependent life with Vera's wealthy mother, Maud Kennaway, who has already suffered a stroke and openly looks down on her infertile son-in-law.
From the start, the household is permeated by Maud’s sharp judgment and a growing sense that Stan will go to any length to maintain control. In a reckless and secretly calculated move, Stan dumps Kennaway's nitroglycerin pills down the toilet and swaps them for worthless sugar substitutes, a choice that sets off a chain of alarming consequences. The tension deepens when Ethel Dean, Maud Kennaway's longtime friend and Vera's godmother, visits, while Mrs. Patterson's boarding house—where Ethel is meant to stay—still isn’t ready. Ethel Dean, unable to access her own pills, ends up taking some of Maud’s now worthless medication and collapses on Stan's couch after a cardiac incident, dying in a scene that unsettles everyone in the room.
Stan immediately tries to control the narrative. He phones the 911 operator and reports the death as Maud Kennaway, while Dr. Klein, Austin Pendleton, handles the paperwork required for cremation. The fragile balance of the household shifts when Maud wakes up just long enough to accuse Stan of murder. A confrontation ensues in which Stan deflects his mother-in-law’s blows with her cane, even as she staggers and slams her head on the radiator. The subsequent act is chilling and decisive: he buries Maud in the backyard and places the new tree he had bought earlier atop the makeshift grave, a grim symbol of how far he is willing to go to silence the mounting threats around him.
The drama continues as Stan travels to Mrs. Patterson's boarding house to gather Ethel’s belongings, a step that tightens the net of suspicion around him. After Maud Kennaway’s will is read, Vera’s portion is set to be held in trust for any natural-born children, a provision that underscores the precariousness of family loyalties and financial claims. An investigation is opened to locate Ethel Dean, who is also named as a beneficiary of Maud’s will, further complicating the plot and drawing more people into the web of questions and motives.
Throughout, the story unfolds with a cool, measured tone that emphasizes manipulation, inheritance, and the fragile lines between love, duty, and danger. The emotional undercurrents—between Stan and Vera, between Maud and the family she looks down upon, and the outsiders drawn into the will—reveal a family culture built on tension, secrets, and calculations about what it takes to survive in a world where wealth and influence sit at the center of every decision.
