With his most recent relationship having ended on Marek's (Matouš Ruml) anniversary, flatmate Marie (Tereza Nvotová) enlists the help of Marek's father (Miroslav Donutil) to teach his son the 10 rules of how to pick up a girl. Identifying the target as Stephanie (Kristína Svarinská), Marek's father, Marie plus other flatmates Erik () and Pavel () set into motion a plan to allow Marek to win the heart of Stephanie. Frustrating the plans, however, is love rival Filip (), who seems to have a system of his own.