Chrissy is a 36-year-old ex-solicitor with three kids, a second hand Volvo and a husband who spends most of his time at high-powered meetings in Europe.

Jo, 29, is an ex-Major Crime Squad detective on the rise. Since the birth of her two-year-old son and subsequent unravelling of her marriage to another detective, she now works part-time in Police Intelligence and is bored to tears.

But when a young local mother with a shady past vanishes in mysterious circumstances, Chrissy and Jo form an unlikely partnership and ramp up their dormant job-skills to become a formidable pair of sleuths, exposing a simmering hotbed of drug-deals and violent murder in the suburbs.

Chrissy and Jo attend Chrissy's university reunion. Surrounded by success, Chrissy begins to question her decision to stay at home with the kids. When an old friend's husband is found dead in the harbour from an apparent heart attack, Chrissy and Jo are drawn to solve the mystery.