Eve Fletcher is trying to figure out what comes next. A forty-six-year-old divorcee whose beloved only child has just left for college, Eve is struggling to adjust to her empty nest when one night her phone lights up with a text message. Sent from an anonymous number, the mysterious sender tells Eve, "U R my MILF!" Over the months that follow, that message comes to obsess Eve. While leading her all-too-placid life--serving as Executive Director of the local senior center by day and taking a community college course on Gender and Society at night, Eve can't curtail her own interest in a porn website called MILFateria.com, which features the erotic exploits of ordinary, middle-aged women like herself. Before long, Eve's online fixations begin to spill over into real life, revealing new romantic possibilities that threaten to upend her quiet suburban existence.