The police say it was suicide. Anna says it was murder. They're both wrong. Last year, Tom and Caroline Johnson chose to end their lives; one seemingly unable to live without the other. Their daughter Anna is struggling to come to terms with her parents' deaths, unwilling to accept the verdict of suicide. Now with a young baby herself, she feels her mother's absence keenly and is determined to find out what really happened to her parents. But as Anna digs up the past, someone is trying to stop her. Sometimes it's safer to let things lie...