In a pricey bachelor pad, a tormented man loses the battle for his soul...and dies a terrible death, apparently by his own hand....In a huge hospital complex, an ex-nurse steals through the halls, hiding behind a phony ID...and plotting to exact a terrifying revenge....In an elegant high-rise, a driven psychiatrist tries to manipulate the truth...and escape punishment for the sins of her past....Deadly obsessions at a prestigious psychiatric institute, where people are dying--and killing--for love, lead NYPD Detective April Woo and eminent psychiatrist Jason Frank into the dangerous and shadowy area of sabotage and criminal responsibility--in an institution where a cold-blooded killer lurks...and where words can be the most lethal weapon of all.