Sleepwalker (1) - S4.E1

After intervening in a fist fight and getting beaten up herself, Maria heads the investigation of a woman who was murdered close to the place where Maria was assaulted. The murderer most likely witnessed what happened to Maria. The motifs oscillate between revenge for infidelity and hatred towards homosexuals, and as the number of murders increase so does Maria's frustration over the reluctance from neighbors and potential witnesses to collaborate in the investigation.