Olivia hates the singles scene, so when her best guy friend, Ian, offers to be her plus one to a series of weddings she has to attend, she agrees. Although she doesn't want to complicate their lifelong friendship, she can't pass up the chance to have a steady date without the dating drama. What she doesn't expect is to now find Ian so incredibly sexy.
When Ian sees his old friend Olivia dolled up for wedding number one, the boyhood crush he once nurtured transforms into smoldering attraction. It doesn't take long for their no-strings arrangement to turn physical. But as Olivia's desire to stay "just friends" becomes clear, Ian's feelings are deepening. In the time they have together, how will Ian convince Olivia that one plus one can make for a lifelong pair?