Twenty-year-old Liam Cavanagh works three dead-end-jobs to take care of his family. He's been the sole breadwinner since he was fifteen and yearns for a life of his own. Forced to grow up too fast, he carries the burdens of responsibilities that shouldn't be his, and it's slowly destroying him. The more he tries to control, the more out of control he feels.

When he gets a hit on a personal ad he placed on The Boys Club app, he shrugs it off as impossible. With nearly 600 miles between him and Daddy Cash he thought the odds were stacked against them until Cash's current boy convinces him otherwise and persuades Liam to take on the role of Daddy's new boy.

Saying forty-year-old entrepreneur Cash Moreau is having a bad week is an understatement. The man he's been with for years leaves him for a new job, his own company is in crisis, and to top it all off, a young stranger shows up on his doorstep with all his worldly possessions, claiming to be his new boy. Liam wants a Daddy to depend on, and Cash refuses to believe he's what's best for Liam.

Despite their powerful connection, Cash finally pushes Liam away, and the beautiful boy who stole his heart disappears. Soon, Cash realizes what he's let slip through his fingers. The elusive thing he's been searching for is Liam, it's only ever been Liam, and suddenly Cash will move heaven and earth to find what he's lost. Will he find his boy in time to make things right, or is it too late to let him in?

Author's Note: Let Me In contains domestic discipline, BDSM, and daddy kink between two unrelated, consenting adults.