In 2011, a psychiatric patient is visited by a postulate. The patient is a retired head of the "D" Group – a secret department of the Security Service to fight against the Polish Catholic church. Murders, beatings, blackmails, provocations, robberies, those are standard methods of operation for its officers. The postulate wants to unravel the mystery of the death of priest Roman Kotlarz, a parish priest from Pelagow.

The Polish national football team manager's adult daughter is wooed by one of the team's players and a sports journalist who is critical of her father.

A multi-layered, touching comedy about a group of friends whose relationships - in the face of life adversities - are exposed to more than one test. Filip risks his face and career for the whim of a crazy collector of Jadźka buttons. The sedate professor refuses his friend's indecent request, but he secretly kidnaps himself in a virtually reckless way. Meanwhile, a close-knit group of friends go to the mountains every year. There they discover a mystery that will change their lives forever. What will they choose? Loyalty or money? Friendship or love? Truth or lie? Own or other luck? Every choice for the heroes of the comedy "Just friendship" means trouble. Who will help them? We know: friends. Because friendship, like no other investment, always pays off.