Vineyard wedding bells are about to chime for ex-Boston-cop-turned-island-fisherman J.W. Jackson and his lady Zee Madieras. And Zee's Automatic Teller tells them a rather substantial "present" has been deposited in the bride-to-be's account: one hundred thousand unexplained dollars.

The bank screams, "Computer Glitch"! And sure enough, two days later, the windfall has flown. But, coincidentally, the college student lying dead in J.W.'s driveway - a young woman done in by a dose of locally grown poison - recently withdrew a hundred grand from her own account. And now, before exchanging vows with his love, J.W. must first match wits with a murderer who may be gearing up to kill again.