Whitney Cameronn (Cotten), a man with a strong affection for his sister-in-law (Peters). When one of her stepchildren dies, it's revealed that the child was poisoned to death. Whitney suspects his sister-in-law committed the murder and is afraid that her other son may be in danger. The film climaxes during an ocean voyage aboard a cruise ship.
Love Is the Monster centers on a couple, Ana and Justin who, rocked by infidelity, attend an exclusive couples retreat in Finland, under the golden rays of the summer’s midnight sun. They join other couples from other parts of the world to experience the transformative teachings of the shaman and healer, Tiina, inspired by the ancient Finnish goddess of love and fertility, Lempo. But the idyllic setting soon takes a turn….