Hell Motel revealed the identity of the killer in a finale that mixed grief, revenge, and true crime. The last episode follows survivors who tried to move on after the Cold River Motel massacre but kept getting pulled back into the story that made them famous.
The plot shows how anger about the public using real pain as entertainment can turn one person into a violent avenger. The show keeps things human: There is no supernatural villain, only people making choices that have tragic results.
The ending centers on two characters, Andy and Paige, who reconnect after the events and then go to a film premiere tied to the old crimes. At that screening, hidden footage and old family home videos are shown, and the situation quickly turns dangerous.
Andy is revealed to have a deep personal connection to the original murders, and his anger drives him to attack people he believes exploited his family. Hell Motel's episode closes with both Andy and Paige dead, and the cycle of turning tragedy into profit continues when someone records the final moment for a new movie.
Andy is revealed as the person behind the killings

Andy is shown to be the son of Caitlyn, a woman who died at Cold River Motel years earlier, and he believes many people profited from her death. He thinks the film world turned his mother’s life and death into a product, and that feeling of being used fuels his plan.
Rather than seeking the absolute truth, Andy targets those he believes are guilty of exploiting the tragedy. This motive turns the plot into a study of grief turned into revenge.
The final scene plays out at a film premiere

At the premiere of the in-story reboot, the screening suddenly shows real home videos and images of the victims instead of end credits, which shocks the crowd. Aaron, the director, rushes to stop the reel and is killed on stage, which starts the panic and exposes the few people left in the hall.
Andy then confronts Paige and tries to finish his mission in front of an audience. The police arrive to see Paige holding a weapon after she stabs Andy, and then they shoot her before all facts can come out.
A tragic misunderstanding makes the violence worse

Crucially, Andy never learns who killed Caitlyn, and that gap in his knowledge makes his revenge misdirected. Since he acts on partial facts and emotion, innocent or peripheral people become targets.
Hell Motel explains that Paige herself had acted in complicated ways in the past, but she was not the true mastermind Andy imagined. That single misunderstanding leads to more deaths and a public scene that looks like a final statement on exploitation.
The ending of Hell Motel warns about the cycle of true-crime entertainment

After the violent climax, a guest’s recording of the confrontation quickly becomes material for another screen project. The series ends by showing how real suffering is packaged as stories again and again.
In that sense, the story asks viewers to think about who benefits when private pain becomes public content. The message is clear: Using real harm for profit can perpetuate harm and keep it alive in new forms.
The killer in Hell Motel was not a masked demon or a supernatural force; the killer in Hell Motel was a man shaped by loss and resentment. The killer in Hell Motel thought violence would stop the exploitation, but the result was only more tragedy and two more deaths.
The killer in Hell Motel became part of the very cycle he wanted to end, and the finale leaves the audience with a quiet, difficult question about fairness, memory, and the price of turning real harm into entertainment.