Just watched Backrooms, and I think I get it.
I think the movie is about consciousness. The backrooms are just collective human consciousness. fMRIs have allowed us to discover most of what we know about the human brain. There’s a reason why this MRI company suddenly pivots away from building MRIs; with these doors to the backrooms opening up around the world (as Phil mentions at the end of the movie), they’ve found a literal glimpse into human consciousness. But it’s so messy and full of trauma and misremembered people and places because human consciousness is also messy. As a result, they’re struggling to understand what the hell they’re looking at. But that’s the point of the film: there is NO making sense of the human mind. It’s messy and ugly and inaccurate. It’s up to each one of us to determine what is real, what is important, what stays with us, and what we have to let go. That’s the genius of approaching a movie about consciousness through the lens of the therapist-patient dynamic.
Mary gets to peek inside Clark’s mind when he kidnaps her and takes her to the memory of his house, and she challenges him to take responsibility for his failed career, his failed furniture store, and his failed marriage. Monster Clark devoured real Clark the moment he stopped and accepted that he would rather just stay the same person forever, trapped in his own habits and damaging thought patterns. He was comfortable in the backrooms because it was easy and familiar. The backrooms that we see in the film represent the obsessive, repetitive thought patterns he had after his wife kicked him out. “I don’t want to change,” he said. Nobody wants to change, because it’s HARD. Mary couldn’t help him because ultimately, it’s up to each one of us to decide whether or not we want to change.
But regardless of whether or not we want to change, our traumatic experiences still exist. This explains the last shot of the film where the collective human consciousness shows its rendition of the trauma Mary is experiencing being trapped in that room with Phil, unsure about whether or not they’ll let her leave.