Five Strangers

Five strangers witness a brutal murder in broad daylight — but can they truly believe what they saw?

With its grassy hills and breathtaking city views, London's Hampstead Heath is the perfect place to spend an afternoon with friends and loved ones—and on an unseasonably warm Valentine's Day, the lawns are especially full. So when an aggressive lovers' quarrel breaks out, there's an audience of park goers nearby to hear the shouts traded back and forth, and to watch as the violence escalates ...