European movie about two sisters + mother who go on a family holiday to some tropical island resort?

– I watched this movie on an Emirates flight in 2018
– European movie, maybe Scandinavian, in a European/Scandinavian language
– Dysfunctional family relationship, one or both of the sisters was estranged or at least didn’t spend much time with the family
– The mum was weird
– I think one of the three (maybe even mother and one daughter) started flirting with one of the staff at the resort
– Honestly can’t remember much more than that