A troubled man starts working at a retirement home and realizes its residents and caretakers harbor sinister secrets. As he investigates the building and its forbidden fourth floor, he starts to uncover connections to his own past and upbringing as a foster child.
Eyes are mutilated. Intestines are pulled out of the abdomen. Skin is ripped off. Bones are broken. Skulls are caved in. Someone gets shot to death (non-political).
A completed suicide attempt is described by a grieving family to the protagonist. This is a recurring part of his story. The suicide is not seen by the audience.
While there's no explicit content, an elderly woman is nebulously attracted to the early-20s protagonist. This is centered around two primary scenes early in the movie's runtime.
Brief scenes of characters making suggestive tongue gestures at the protagonist. After the protagonist observes a character having sex by accident, the character climbs into the protagonist's bed while he's sleeping. The sexuality of these actions is not clear, but the scenes play on the discomfort of the objectification.