Four volunteers sign up for what initially appears to be a typical paid research study, only to discover that they've unwittingly become involved with a classified government program that was said to have been terminated nearly two decades ago. Nick Cannon, Timothy Hutton, Shea Whigham, Chloë Sevigny, Peter Stormare, Clea DuVall, Bill Stinchcomb Added on Amazon Prime 2023-07-28.