A woman betrayed. A marriage trashed. A body in the lake. Less than two weeks before police slap handcuffs on Olivia Mercier's wrists. When divers discover Shauna Wylie's body, encased in a barrel of concrete in Donner Lake, Olivia is of two minds. The death of her former best friend traumatizes her. At the same time however, Shauna is the reason Olivia's husband lives in a bachelor pad. Now someone has dispatched Shauna from Earth. Is it wrong to feel vindicated? Then police find a bag of cement in Olivia's garage and learn she stands to inherit $17.5 million from Shauna. Olivia rockets to the front of the suspect line. Positive the police won't look for other suspects, especially when forensic results arrive, Olivia launches a search Shauna's killer. Her investigation uncovers long-buried secrets and earns Olivia top billing on the killer's hit list.