As Sheriff of the small island town of Pleasant Shores, Morgan Reed thought her worst problems were drunk tourists and a regrettable one-night stand with a junior officer. Then a local woman goes missing, and the mutilated body of a tourist washes up on shore.

The town's medical examiner rules it the work of a shark. But something about the attack doesn't sit right with Morgan. And neither do the long-standing rumors surrounding Infinigen Labs, the controversial research facility owned by the Vandergelds, the island's founding family.

As the Vangergelds close ranks, Morgan begins to suspect the predator in the water isn't a shark at all, but something created in the lab. Something intelligent, dangerous, and bent on revenge.