The roiling blizzard toys with the overweight Chrysler, nudging it into a spin. The momentum leads to impact: a thundering, crunching of metal and glass. Caitlin Neuman awakes from this nightmare, wondering if it might be a harrowing memory-she's the lone survivor of a crash that killed her parents and twin sister years earlier. Or could the nightmare be an eerie insight into some family she's never met? Then again, it might just be a bad dream. Caitlin engages retired Detective Paco LeSoto to find out the truth. Paco's clever wife, Molly, tags along, uncovering her share of clues. She spouts her own deliciously skewed English, while Paco suspects her "Mollyprops" are clever contrivances. Their investigation takes them to the Boston family, another set of twins, and a string of suspicious deaths. In a Chesapeake Bay beachside home not far from the Neumans, newlyweds Newton Boston and his blonde bombshell wife, Delylah, grapple with their own family turmoil. Delylah's adult children churn up vicious undercurrents that threaten the entire household. Four deceased husbands lie in Delylah's past. When another family member dies under mysterious circumstances, the clues point to murder. The LeSotos expose the sinister connections. But can they stop yet another killing, bring justice to the culprits and peace to both families?