When an Irish football club becomes embroiled in an international match-fixing scandal, their hapless assistant manager, Fran Costello, finds himself way out of his league. Competing in the FAI Cup for the first time is a dream come true for Fran and his beloved amateur club St. Peter’s Celtic, but when Fran learns that some of his players have taken a bribe to fix the match, he turns detective in the hope of catching the rats. Everyone is a suspect in this hilarious whodunnit, and Fran’s life is further complicated by a slow-burning romance with Jackie Charlton - one of his player’s mothers. For someone who has used football to shy away from life, Fran is being catapulted headfirst into all it has to offer.