On, Off

by Colleen McCullough

First published 2006

In a prestigious Connecticut research center, a young woman's mutilated body is found in the freezer. As the body count rises, Lieutenant Carmine Delmonico races to catch a sadistic killer targeting a specific "type" of victim. With a long list of brilliant but eccentric suspects, including a wealthy Indian scientist, a neurochemist with a taste for the finer things, and a tough-as-nails business manager, Delmonico must unravel a web of dark secrets and family scandals to stop the bloodshed. Can he outwit the killer before they strike again?

Genres: mystery, crime, thriller, detective

Vibes: dark, fast-paced, suspenseful

Tropes: detective-story, serial-killer

Setting: Connecticut

435 pages · Paperback · HarperCollins Publishers

Content warnings: violence

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