Elin Axelsson is unmistakably the worst goalie in her women's indoor soccer league. Yet each week, she laces up her cleats, pumps up her teammates, and gives it her all. At least playing soccer means being able to spend more time with her all-star goalie boyfriend, Nate. And her best friend of fifteen years—who's a total ladies' man—Hawk.

But when Elin catches Nate cheating, she dumps his ass, and finds herself thrust back into the weird world of online dating. At least she has Hawk to lean on. He has a new woman every week, and is a dating expert. But after a few awkward first dates with other people, Elin starts noticing Hawk in a different light. Except, that can't happen. She can't risk losing him, or their fifteen-year friendship if things go sour.

That is, until they manage to fall tongue-first into each other's mouths. The two form a pact to prevent diving hormones-first into more bad relationships. They'll hook up with each other, and compartmentalize their friendship. But there are rules: Elin sets the pace, no sex with others while the pact is in effect, and if either develop romantic feelings for the other, they must bail out to protect the friendship. It's the perfect arrangement!

Until it isn't.