I Think I'm Falling Apart

"Why did she die? How much did I really know her? These are the questions Benny asks himself after finding Staci in the bathtub with her wrists slit. He spirals into a bout of depression. Two weeks later, she reappears as if nothing happened. But only for one night, and then she’s gone again. Two weeks later, it happens again, forcing Benny to ask himself a new set of questions. Did Staci kill herself, or was she murdered? Am I traveling back in time, or am going crazy?