Behind closed doors, the passionate relationships of three different couples unravel across three distinct decades, linked together by the murder of a man. In 1990, high school sweethearts navigate dynamic power shifts after moving in together; in 2000, an established adult couple grapples with emotional decay and unresolved domestic hostility; and in 2020, during the COVID-19 pandemic, Leonidas and Manos contend with social pressure, isolation, and psychological strain. Across all three eras, escalating tensions cause love to dissolve into manipulation, emotional turmoil, and violence.