The Grandma on the Third Floor

Six young people accidentally stumble into an abandoned mansion during a mountain camping trip, unaware it holds their parents' long-standing feud. What begins as a relaxing outdoor adventure quickly turns terrifying with roaring tigers, camp attacks, and mysterious notes. Lost and separated in panic, they are trapped in the eerie old house, where suspicion and tension tear them apart as they face the edge of death. As the truth unfolds, the so-called 'ferocious tiger' is revealed to be a human-orchestrated revenge plot, while a final note left in the mansion uncovers a deadly misunderstanding and unresolved heartbreak between their parents from years ago.