Would you reveal a secret that might solve a murder but would ruin your life? Ginnie Holmes has found something she never intended to find - an overwhelming passion for a man she should not be with. And they have found somewhere to meet - an abandoned boathouse hidden on the riverbank of the Thames. Then, in a single terrifying event, the lovers' secret becomes a deadly catastrophe. A woman is found murdered at the river's edge, just near the river house. And Ginnie finds herself in the path of extraordinary danger, not only facing the exposure and grief that she has feared, but endangering herself and everyone she loves.