How much do we know of our partner's past? When we say, 'Tell me about yourself,' how much is told? How much is held back? When Martyn Buckley's wife, Sarah, dies in what seems to be an unfortunate accident, Martyn finds himself on a helter-skelter ride of discovery and emotional trauma. A mobile phone, a notebook and some photographs reveal a sarah that Martyn never knew. But is that why she died, because of her past? Or, as the police seem to suspect, did Martyn kill her, having already discovered her secret? Ask yourself: how much is told? How much is held back?