Neurotic Donna, boozy slag Karen, and sex-starved Louise deal with day-to-day lives of creepy exes, bad birthdays, disastrous dates, stolen kebabs, binge drinking, shoplifting, unplanned pregnancy, and more selfish acts of sisterly love.
During her disastrous bachelorette party, Donna decides to ditch her dull fiance. After she moves in with her two best friends, she plunges headfirst into the singles scene, hoping for the possibilities of new love.