Unable to find evidence to put JC behind bars, Rafa promises prostitute Lidia to protect her until she is safe, but after taking her to his apartment he soon sees he is putting in risk the safety of his roommate Pedro and her Girlfriend Inma, trying to end all of this he plans an illegal way of collecting evidence against her pimp. The man that seems to have ties with the bra killer is obsessed with his neighbor, and ends up attacking her. As they find the new body Ferrer, Ruso and Nerea think for a moment they are closing on the serial killer. But soon they release the crime scene is different in comparison with the previous attacks. Jaime and Vera help a mother with two sons, one of them is in the hospital due to a nearly mortal intoxication, the other runs away from home soon after his brother recovers. Susana opens up to Carlos about her love, and then tries her best to get over him. Marina is called to deal with a woman who demands her neighbor to stop walking around naked in his apartment. Carlos and Lola deal with an unemployed man blaming a employment agency about his bad luck after he lost his job in a bank. After a series of menaces the precinct members decide to do a night surveillance on the place with Carlos and Mateo assigned for the first watch, however Carlos growing depressions may put Mateo's life in danger.
—Pencho15