********MAJOR SPOILERS********
The ending of The Visit is where the movie cashes in all the weirdness it has been piling up and turns it into one of Shyamalan’s nastiest reveals. Up to that point, Becca and Tyler think they are dealing with grandparents who are unstable, frightening, and maybe suffering from age-related mental decline. Bad enough. Then the movie rips the floor out.
The first huge turn is the video call with their mother. She looks at the people on camera and immediately realizes those are not her parents. That moment changes everything. The siblings are not trapped with sick grandparents. They are trapped with total strangers who killed their real grandparents and took over the farmhouse.
Once that truth is out, the movie moves fast. Becca and Tyler try to escape. They find Stacey’s body. They are forced into the grotesque Yahtzee scene. Then Becca gets into the basement and finds the corpses of her actual grandparents. That basement reveal is the scene that really seals the ending. It gives the movie a hard factual horror underneath all the comedy, awkwardness, and found-footage weirdness.
After that, the fake Nana and Pop Pop stop needing to pretend. Pop Pop locks Becca up with Nana, who goes into a violent episode and attacks her. Tyler gets cornered and humiliated by Pop Pop, who smears him with the soiled diaper because he knows exactly what will break the kid psychologically. The movie is nasty there on purpose. It wants the family-reunion fantasy to curdle completely.
Then the siblings fight back. Becca stabs fake Nana with a shard from the broken mirror. Tyler gets the upper hand on fake Pop Pop by slamming the refrigerator door into him over and over again. That is the movie’s release valve. The kids do not get saved by an adult swooping in just in time. They survive by finally fighting for themselves.
After that, their mother and the police arrive. But the film still has one emotional beat left. Back home, Loretta tells them what happened with her real parents years ago and admits reconciliation was possible before she cut them off completely. Becca responds by deciding to include footage of her father in the documentary after all. Tyler closes the movie with the rap, which is funny, ridiculous, and oddly perfect for a film that always wanted horror and embarrassment living side by side.
So the plain version is this: the mother reveals the grandparents are impostors, the kids discover the real grandparents are dead, the fake Nana and Pop Pop turn fully violent, Becca and Tyler kill them, and the family reckons with the emotional fallout afterward. The ending turns a fake family reunion into a real fight for survival.