When Shea Walker, a sunny, easygoing mom, is found dead in a bathtub with a stomach full of booze and pills, the shocking discovery shatters the complacency of her comfortable suburban community.

Kat Burrows, Shea's longtime friend and former neighbor, is hit hardest. How could a woman she thought she knew so well come to such a sordid end? What could lead happy, well-adjusted, responsible Shea to accidentally overdose on alcohol and narcotics? Or, worse, drive her to suicide?

Compelled to uncover the truth of Shea's final months, Kat delves beneath the orderly surface of her...