In the 1970s, a middle-class couple, Norma and Arthur, lead a quiet life until a mysterious man presents them with a disturbing box. This stranger proposes a moral dilemma: if they press the button on the box, they will receive a million dollars, but at the same time, someone in the world will die. At first, the temptation of money seems irresistible, prompting them to weigh the consequences of their actions. As the couple struggles with their decision, the intriguing proposal begins to unravel dark secrets and conflicts in their relationship.
As the unsettling figure behind the box lurks, chaos unleashes in their lives. Norma, driven by her desire to improve her life and secure a future for her family, starts to consider the option more closely, while Arthur grapples with the idea of playing with the lives of others. The tension escalates as strange things begin happening in their surroundings. Reality distorts, and a series of tragic events begin to test the limits of their morality and safety.
As they face the impact of their choice, the couple soon realizes that their actions have far-reaching repercussions beyond what they expected, leading them into a spiral of madness and desperation. With each decision they make, the line between good and evil becomes increasingly blurred, and the true value of life begins to be questioned.