Headfirst is a black comedy about a single mother with anger management problems and her teenage daughter who is always in trouble at school. With yet another school comes a new teacher and a blast from the past for the mother. Before long, an accidental pickpocket and a notoriously lousy storyteller teams up with this one dysfunctional sort of a family. Nothing is the same anymore. Headfirst is a story about missing teeth, strange friends, hidden dreams and long-gone love. And about a hare.

Marja (Minka Kuustonen) is a blogger. Olavi is one of the richest men in the country. She might be able to save her blog if she dates him, but what if she falls for him for real?

Johanna, the hostess of the parish house, does her utmost to ensure that everything goes according to plan. There is no room for error. The last thing Johanna needs is a busload of uninvited guests knocking on the door of the parish house on the eve of an important wedding. However, a passing Russian party has had its car broken down and Johanna soon finds herself accommodating the party at the parish house. Johanna's brother is tasked with fixing the car to get the guests on the road and out of the way quickly. Her brother's entrepreneurial friend, on the other hand, sees great opportunities in the situation and decides to act. The clock ticks, the car won't start, the wedding ceremony is about to begin and the recipe for disaster is in motion.

Out into the big wide world as fast as possible. That’s Elli’s plan. But where should she get the money from, if not steal it? When Heze falls for her, she steals from him and both have to learn: “Adulthood is a big pain in the arse”.

Siiri, a hardworking millennial, wants to be successful in her job as the advisor to the Minister of Economic Affairs. She craves a promotion. Siiri’s job takes her and the hard-to-handle minister, an unpredictable eccentric boss lady, to a big tango festival in a small Finnish town. Siiri’s father Petri, a former tango artist and an overly optimistic middle-aged man, wants to make himself useful to Siiri while trying to hide the fact that he himself is homeless, bankrupt and finally at his wits end. Over the course of one summer weekend both Siiri’s and Petri’s facade comes tumbling down but the tango keeps going on in the sweet Finnish summer night.