Unknown Evil - Ronald Higgins - Bog

Two NYPD Detectives get involved in a murder case that turns out to be the strangest case that Lt. Stevens and Lt. Rizzo ever tried to solve. There is a romance between Lt. Stevens and a woman named Susan Roselle who happens to be Lt. Rizzo's cousins. The case takes the three of them on a strange chases above and below the City of New York.