All Karen Petersen has ever wanted is to be someone's number one. She's lived in the shadow of her older brother, never getting any attention from parents, who value financial success that she could never achieve as a third-grade teacher in small town Bucks Mill, Virginia. All her girlfriends turn into friends or acquaintances. Even her best friend doesn't have room for her at the top of her priority list.

So, of course, the intoxicatingly beautiful new art teacher Bianca Harper has an equally perfect butch wife already on her arm. Then again, Bianca seems just as eager as Karen for the limited time together their packed teaching schedules allow. Bianca definitely isn't a cheater, but things aren't exactly as they seem. Has Karen finally found the one who truly wants her to be their person?