Hanna and Clarissa, best friends since childhood, were habitually spending their summer holidays with their parents in a holiday home on a small island. The two have not kept in touch since the age of 9. They meet by chance 25 years later. Hanna is now married, family owned and working in a hospital. Here she finds Clarissa, hospitalized urgently after an overdose. The two old friends decide to spend a few days on the island of their childhood. But once they arrived at the destination, the ghosts of the past and terrifying secrets ruined their stay.