Late one night, Kate is woken by her husband Paul, drunk, covered in blood, and mumbling that he's killed something - or someone.
Afterwards, Paul denies he ever said what he did. But when an attractive young woman who works for him is found murdered, Kate's terrible suspicions about what her husband has really done send her on a desperate search for the truth.
Although as the lies multiply, and Kate's carefully constructed life comes under threat, doing the right thing is not as straightforward as it seems . . .