The film follows Sanna, who sets out to document the countless ways there are to ruin a marriage for her doctoral thesis.

Armi Toivanen
as Sanna Manner

Essi Hellén
as Aino Elomäki

Aku Hirviniemi
as Jouni Pirhonen

Riku Nieminen
as Aleksi Sepänniitty

Pamela Tola
as Elli

Hannele Lauri
as Eila Manner

Vesa Vierikko
as Eero Manner

Niina Lahtinen
as Johanna

Aarre Karén
as Hearing Impaired Man

Eila Roine
as Visually Impaired Woman