Frank skal fejre Sankt Hans hos sine svigerforældre, der længe har haft Frank mistænkt for at være skyld i Mias barnløshed. Alt starter fint, men inden længe er Frank skyld i en familietragedie, der involverer svigermors brudekjole, andengradsforbrænding, prut-bakterier og en æresport.
Frank is to celebrate Saint Hans with his in-laws, who have long suspected Frank of being to blame for Mia's childlessness. It all starts fine, but before long, Frank is to blame for a family tragedy involving his mother-in-law's wedding dress, second-degree burns, fart bacteria and an honor sport.
