In 1980's Helsinki, a city about to burst with young energy and rebellion, two young writers determined to conquer the world fall madly in love. For Inka, the love affair puts everything in motion: she finds her own voice, publishes her first novel - and becomes a sensation. The intensity of their relationship has a different affect on Juhana, who starts to lose his grip on writing and, finally, life. At the height of the love affair Inka starts to suspect that their mad love might actually be real madness.

In 1980's Helsinki, a city about to burst with young energy and rebellion, two young writers determined to conquer the world fall madly in love. For Inka, the love affair puts everything in motion: she finds her own voice, publishes her first novel - and becomes a sensation. The intensity of their relationship has a different affect on Juhana, who starts to lose his grip on writing and, finally, life. At the height of the love affair Inka starts to suspect that their mad love might actually be real madness.

Force of Habit follows the lives of various women throughout one day. Hilla is having a romantic vacation, Emmi is throwing a house party, and Milja is on her way to school when they’re approached by a stranger and things take an unexpected turn. At the same time, Emppu, a young actress, is conflicted as she rehearses for the biggest role of her life. Elsewhere, Aleksi, an inexperienced prosecutor, is preparing for his first court case in haste; Niina, the victim of the crime, has been waiting years to see her case tried. Miia throws a company party, and the mood dramatically changes when her colleague Katja opens up about their boss coming on to her. Miia and a couple of her closest colleagues try to resolve the situation, but how do the others react?

Best friends Mimmi and Rönkkö work after school at a foodcourt smoothie kiosk, frankly swapping stories of their frustrations and expectations regarding love and sex. Volatile misfit Mimmi, unexpectedly swept up in the thrill of a new romance with Emma (a driven skater training for the European championships), struggles to adjust to the trust and compromise required by a lasting relationship. Meanwhile, the offbeat, indefatigable Rönkkö hits the teen party scene, stumbling through a series of awkward encounters with members of the opposite sex while hoping to find her own version of satisfaction.