Laura has recently started working in the Barcelona subway. She has been assigned the old and quiet Rocafort station, but it won't be long before she discovers that this stop harbors a legend that will begin to haunt her: many people have died there in strange circumstances over the years and no one seems to be interested in knowing the truth.
throughout the film you see a possessed dog AND short after the cops dog goes running through the metro you will se him tied to the rails after that scene the same spot is shown with blood and the remains…