She used to be his best friend's wife. But now she's the one woman he can't resist . . .

Single mom Kate Connelly is doing her best to hold it all together after losing her firefighter husband two years ago. With a teenage son who loves to push boundaries, a middle child who's a pyromaniac in the making, and a curious daughter who never stops asking questions, Kate barely has time to breathe—let alone think about romance.

But when her late husband's best friend, Marley Hartson, shows up with his steady presence and protective instincts, Kate can't ignore the flutter in her chest.

Marley made a promise to his best friend that he'd always look after his family. What he didn't expect was to fall for the one woman he's forbidden to love.

As their attraction deepens and the summer sizzles, Kate and Marley must decide: Will they honor the past, or risk it all for a chance at a new future?

Because some promises are meant to be broken . . .

Contains mature themes.