There are new revelations about what happened during the weekend of the students in São João da Cruz. Marta's anxiety and frustration lead her to a dangerous situation.

Marta is even more convinced that her sister and colleagues were hazed the night they drowned in Praia da Cruz, but the search for the truth drags her into a spiral of anxiety and frustration.

Convinced that there were more people in the house at São João da Cruz on the day of the tragedy, Marta will look for clues with her neighbours.

When trying to realise what happened at Praia da Cruz, Marta approaches Alex. The police investigation finds no evidence of a crime and the case is considered an accident.

Marta realizes there is a pact of silence in AVA and Gonçalo's explanation for the accident presents incongruities.

Six young college students leave for São João da Cruz to celebrate their rise in a prestigious academic association. The fun gives way to terror when the students drown in suspicious circumstances.