Haley Connors is determined to make sure no one ruins her sister's wedding. But she suspects that the charming best man, Mike Sanderson, is the one behind all the little things that have been going wrong. Mike isn’t anyone she intends to get to know better, and she has reason to believe he might not want to lose his best friend to marriage. Mike Sanderson doesn’t understand why the fiery older sister of the bride is so unfriendly. But since he’s hell-bent on making sure his best buddy’s wedding goes off without a hitch, he’s going to have to keep a close eye on her. For all he knows, Haley might be the one messing with the wedding, and keeping an eye on the petite redhead won’t be a hardship. But when the incidents escalate to a dangerous level, Mike and Haley discover that teaming up to catch the culprit could have disastrous consequences… not just for the wedding or even for their lives but also for their hearts.