Social media influencer Carol (Giorgia Faraoni) and her partner Roberta (Jade Pirovano) are looking forward to their long-awaited, romantic vacation in Southeast Asia. Having arrived on the paradise island of their dreams, the two are in the mood for an adventure. They spontaneously book a dive on a charter yacht. What they don't know is that the captain (Daniel Franchi), who initially seems quite charming, is a psychopath and has dark plans for the couple. It doesn't take long before he leaves ...