She is the light he was never meant to possess and the only thing he can't let go.

Erin Skye comes to Boston to help her best friend and temporarily run her veterinary clinic. By day, Erin keeps her life simple. By night, she becomes an anonymous hacker dismantling trafficking networks across the dark web. But the city also brings her back into the orbit of Matteo Di Rossi, the Mafia enforcer she can't forget after what was supposed to be a one-night mistake. He made it clear-no repeats, no complications. Erin is both, so he pushes her away. Determined to protect her heart, Erin refuses to let the aloof Mafia enforcer control her emotions again.

Cold, dangerous, and completely off-limits, Matteo wants nothing to do with her, until he discovers Erin is the hacker he's been trying to unmask.

When he forces Erin into a volatile partnership to take down the trafficking ring known as Manticore, Matteo's control begins to fracture and the line between protection and obsession shatters. His need turns possessive. But the harder she resists him, the more relentless he becomes.

As danger closes in, Matteo will need every ounce of his power and every bit of Erin's wit to face the invisible threat closing in on them.

She never was a complication.

She's the one thing he refuses to lose.