I love my father-in-law more than my husband... beach bookmark sail - Hamabe Shioriho

The movie explores a complex family dynamic, specifically the relationship between the protagonist, her husband, and her father-in-law. The title suggests a deep affection between the protagonist and her father-in-law, potentially creating tension within the marriage. As the story unfolds, themes of marital dissatisfaction, unfulfilled desires, and unconventional relationships emerge, leading to a dramatic exploration of human connections and boundaries.