This movie is just great! "La muerte camina en la lluvia" (death walks in the rain) It's set in Buenos Aires when a serial murderer kills people only in rainy days and always leaving a note beside the body: "S. Lopez". The police find out that the killer lives in an old "pension" (some kind of big house in which the owner rents the rooms). So, when a professor from Uruguay arrives at the mansion, he is asked by the police to help the investigation. Problems begin when the professor is murdered, as if the killer knows he's being chased by the police. If you enjoy mystery and who-done-its, then you should give this movie a try. Guillermo Battaglia's and Nicolás Fregues's performances are superb. This movie deserves a remake.