The Girl on the Train

You can see the kind of movie that The Girl on the Train could be, that it wants to be, in brief flashes throughout its duration: Grimy, nasty, erotic, right at the intersection where titillation meets taste, a movie that courts offense while wrapped in high caliber filmmaking. We see that most clearly in the climax, when all of the crazy simmering beneath its surface boils over in a dazzling explosion of soap operatics. The problem is that the content stops just short of stepping over the edge of propriety. The sex is sexy without getting the viewer in too much of a lather. The violence is bloody but compared with cable television, that particular gauge of excess is a bit harder to register upon.
Granted, The Girl on the Train could never fit into a cable box. It’s both too sanitized for film and too naughty for TV, simple enough to follow but labyrinthine enough to give the impression of complexity. The protagonist is Rachel (Emily Blunt), a divorced alcoholic who took her husband, Tom (Justin Theroux), to Splitsville after she caught him cheating. She commutes to work via train every day, and every day she catches glimpses of her former neighbors, Megan (Haley Bennett) and Scott (Luke Evans), fooling around or being generally lovey dovey as she passes by on the tracks.
It’s pure voyeurism, and the film turns those windows into Megan’s and Scott’s lives into an excuse for Rachel to fantasize about what used to be. (One could also describe this as “self-torture.”) But then she sees Megan with another man, and everything unravels to the point where Rachel wakes up one morning with no memory of what happened to her the night before. She’s also covered in blood. Her low-point trifecta is completed when Megan goes missing. The pieces fit together obviously, which means we have to reject the obvious conclusion and hang with Rachel as she figures out what the hell happened to her and to Megan. It’s unfortunate, then, that the film’s remaining pieces also fit together obviously, that the puzzle we’re meant to solve alongside Rachel is itself so easily unpacked.