May 2017. The charred remains of police officer Pedro (José Manuel Poga) are found inside a burnt-out car at Barcelona's Foix reservoir. The discovery quickly arouses the public's interest, especially when the investigation begins to reveal a network of toxic relationships, deceit, violence and sexual scandals involving Pedro and two fellow police officers: his partner Rosa (Úrsula Corberó) and her ex-boyfriend Albert (Quim Gutiérrez).