Sangre nocturna

What could a couple, two girlfriends, two rival gangs, one murderer, and four prisoners have in common? The night will be stained in blood... What could a couple, two girlfriends, two rival gangs, one murderer, and four prisoners have in common? The night will be stained in blood... What could a couple, two girlfriends, two rival gangs, one murderer, and four prisoners have in common? The night will be stained in blood... What could a couple, two girlfriends, two rival gangs, one murderer, and four prisoners have in common? The night will be stained in blood...