When body parts belonging to a young Nigerian man are discovered on the island, Perez and the team investigate. They use CCTV to trace the victim's last movements, and after scrutinising his emails and social media accounts, the case takes a sinister turn.
Carla and Prentice Hayes are found cuddled in a unhappy knife attack. Jamie Hayes is missing, initially leading the team to speculate that he could be responsible. But Jimmy is convinced that Jamie could not have mutilated his mother in this way. Aware of her altercation with Prentice the previous evening, Perez pays a visit to Olivia Lennox. She's in her room, shaken, with blood on her clothes. Could she be responsible or an innocent bystander?