This should have closer to a 7 than 5 rating but not many have scored it yet. I haven't watched too much Finnish cinema, nor anything by this director, but he keeps things moving along, keeps the gags coming and the acting is fine all around, especially Susanna Pukilla in the lead. She looks a great comedy prospect and I'm surprised she hasn't made other films yet.
It starts out well with a lesbian couple coming out to their respective parents and one of them ending up more outraged than the parents are. This soon develops into a 'crazy situation' film, but the plot works much better than in a whole lot of 'realistic' movies - something similar to this could easily happen. Maybe there's too much emphasis on the promiscuity - I did find that got dull in places - and too little on the serious issues raised, but not a huge problem. It's basically a dark comedy and lots of hilarious moments are provided by, for example, Pukilla's facial expressions and the absurd Walther PPK.
No masterpiece this, but 90 minutes of solid entertainment.