Happy hour in a Manhattan bar becomes a scene of carnage when a potent hallucinogenic-drug mixture, released into the air, causes everyone inside to attack everyone else. While members of the NYPD unit headed by Lieutenant Eve Dallas soon identify the drugs, they can’t stop another incident days later
ata nearby cafe. With a total of 127 dead and the looming threat of another incident, Dallas and her colleagues (with Dallasbillionaire husband, Roarke, who owns the bar, serving as a consultant) race to check out victims, including the few who survived the attack, as they search for connections and motives, with an unexpected assist from the historical knowledge of Roarke’s live-in butler. Although sleepless for days, Dallas remains at the top of her game, and even with the help of modern technology, it’s still dogged police work and keen intuition that solve crimes. With its final twist..