Have you ever had the feeling that you’re going out of your mind? Something just doesn’t feel right, your sense of perception and memory of the past don’t match the “reality” you’re currently experiencing but you have no way of knowing what’s at fault, you or the world. The hero of Parallel World Love Story (パラレルワールド・ラブストーリー) finds himself in just this situation as he begins to experience two very different states of being, one in which he’s living happily with the love of his life, and another where she’s dating his childhood friend. Is he a love crazed fool, or is someone messing with his head?

Travelling the same train into college every day, Takashi (Yuta Tamamori) fell in deep silent love with a young woman whose train crossed his every Tuesday morning. On his very last Tuesday, he decided he’d switch trains and try to find her, but she did exactly the same thing and so they missed each other, leaving Takashi feeling as if his fated romance was matter for another universe. He is then shocked when an old friend from middle school, Tomohiko (Shota Sometani), introduces that same young woman, Mayuko (Riho Yoshioka), as his girlfriend some time later. A little resentful at this twist of fate, Takashi tries his best to keep his feelings hidden. Meanwhile we see him “wake up” in his own apartment where Mayuko, who lives with him, is lovingly making him breakfast. He has a vague recollection of Tomohiko turning up in his dream, but can’t seem to remember what it is he’s doing these days. In this “reality”, Tomohiko introduced Mayuko to Takashi, and has abruptly moved to LA without even saying a proper goodbye, apparently working on a top secret research operation which keeps him entirely out of contact. 

Both men are involved with the research of perception and memory. Talking to another friend before “meeting” Mayuko, Takashi points out that it’s your brain which constructs the current reality from your sense perception. He grasps her hand and her brain tells her she feels it, but she’d feel the same thing if he isolated and activated the relevant sectors of her brain which tell her her hand is being grasped. Tomohiko, meanwhile, has gone one step further. He’s discovered that it’s neural networks rather than the brain which store memories and that, by stimulating those neural receptors in a particular way, memory can be rewritten or fake memories introduced. He proves this by illegally experimenting on a friend, making him think he’s from Tokyo when he’s really from Hiroshima, and reconstructing the image of an old teacher so that she’s now a pretty young woman and not a portly old man. 

The gap between what you want to be true and the “reality” is shrinking. It turns out that it’s easy enough to trick yourself into thinking something is true when it isn’t when you really want it to be. According to Tomohiko, once your brain has decided to approve the “fake” reality, cognitive dissonance is overcome by everything else being forced to fit into your new conception of the world. Takashi, however, is struggling to integrate his two parallel lives, one bleeding inconveniently into the other leaving him wondering which one is the “reality” and which the “dream”. 

Takashi’s less palatable qualities, however, exist firmly in the recent past of reality A in which romantic jealousy appears to have driven him half out of his mind, causing him to semi-stalk the innocent Mayuko and consider betraying his childhood friend by stealing the woman he loves. Takashi’s sole justification for his behaviour is the unspoken romantic connection which brought them together on the train, a connection he is “certain” she remembers without being given any particular encouragement from her side. Reality B Takashi, who lives with Mayuko, similarly becomes obsessed with the idea that Mayuko in some way belongs to Tomohiko, awakening an unpleasant sense of misogyny in his desire to prove that Mayuko is his because he saw her first on the train. 

Meanwhile back in Reality A, he starts to suspect that Tomohiko is up to no good pursuing unethical research practices and working towards a sinister goal. It’s unfortunate that Tomohiko also has a prominent limp from a lame leg, playing into the unpleasant association of villainy and disability. Even Takashi, having turned dark, accuses Mayuko of dating him out of pity, while Tomohiko describes him as a “hero” for having rescued him from childhood bullies. Takashi starts to suspect him, not only of being a mad scientist, but perhaps actively hostile and plotting revenge against him for stealing Mayuko. In a particularly Higashino-esque touch, Tomohiko’s motives turn out to be kinder than they might at first seem even if they’re a little on the extreme side, leaving Takashi pushed to make a similarly extreme yet strangely counterproductive move by his infinitely shady boss who is also exploiting the increasingly conflicted Mayuko. Yet, aside from all the philosophical musings on the nature of reality, the interplay of desire and memory, and the ethics of manipulating the perception of others, this is in essence a love story between two people who gazed at each other from passing trains. If you find each other once, you can find each other twice, and, in love, reality might not be so important.


Original trailer (hit subtitle button for English subs)

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