Shadow Puppets

Two individuals, a man and a woman, find themselves trapped in a mysterious facility with no memory of who they are or how they got there. As they navigate the abandoned prison or mental institution, they're joined by six others in similar circumstances. But their escape is threatened when a seventh person is brutally murdered by a dark, unseen force. As they search for a way out, they stumble upon a sinister brainwashing device, hinting at a dark history. But it's not until they meet the ninth stranger that they uncover a shocking truth: one of their own is hiding secrets and knows more about their predicament than they're letting on.