Philomena McCarthy is a young, ambitious police officer with the elite Metropolitan Police in London. When she responds to a domestic violence call, she finds the victim, Tempe Brown, trying to protect her abuser, a married man named Darren Goodall, a decorated Scotland Yard detective afraid of no one. As Philomena pursues the case against him, she not only encounters resistance from her police force colleagues but also becomes dangerously entangled with the victim -- who is not at all whom she appears to be -- much to the increasing endangerment of herself and Henry, her fiancÃ(c)e.