"Mad" Mary McArdle returns to Drogheda after a short spell in prison for something she'd rather forget. Back home, everything and everyone has changed. Her best friend, Charlene, is about to get married and Mary is maid of honor. When Charlene refuses Mary a 'plus one' on the grounds that she probably couldn't find a date, Mary becomes determined to prove her wrong.
When the quiet life of a beach bum is upended by dreadful news, he sets off for his childhood home to carry out an act of vengeance. However, he proves an inept assassin and finds himself in a brutal fight to protect his estranged family.