Caiomhe Ryan is the luckiest girl in Boston-she has a great job, a cute apartment, and a ride-or-die best friend. All her ancestral luck as a leprechaun doesn't hurt either. When she takes a chance on an urgent client, the mysterious man at the heart of a scandal has her wondering how much longer she can keep herself a secret.

Leith Riordan just wants to drive boats by day and turn back into a merman at night-as simple as that. All his plans are destroyed, however, when a single lost temper lands him in a viral social media storm-and on Caiomhe Ryan's client roster. He knows his life can't go back to being simple. After all, it's not easy to tell a beautiful woman you're actually a merman.

Sparks fly and porridge burns when these two magical beings in the heart of Boston must decide if they can hide from the public while still being true to one another-and themselves.