The suicide of one of the crew on board a navy submarine would be regrettable but unremarkable if not for the fact that the night before, unbeknownst to his crew, he had received news of his wife's brutal attack and murder. Lieutenant Danielle Lewis, renowned within the navy for her professional record with the investigative crime team, KILL, is drafted to talk to the crew about the suicide with the aim of finding out if it's linked to the murder. As she investigates Dan becomes increasingly convinced she is dealing with two murders. But there is only one way to prove her theory, she must depart with the submarine on its next mission. A lone woman on a submarine. No contact with the outside world. A hostile male crew determined to use any means, sexual or violent, to unsettle her. Dan has never felt more alone or vulnerable. Dan must find the truth but if the killer's on board, will she even make it off the submarine? Tense, dramatic, claustrophobic and brilliant, this is Headline's crime launch for 2015.