Spinal_Trap’s review published on Letterboxd:
Graphic, disturbing, intriguing and equally messy, Possessor definitely gets in your head and leaves an impression. Little Cronenberg is definitely influenced by his dad here with a more unsettling Existenz vibe mixed with some Inception and Upgrade.
In places where more explanation would have been good, it instead doubles down on the gorey weird and trippy. Be warned that the uncut version would most likely be a full x rating. I enjoyed this thoroughly messed up movie, and it's one that stays with you.