Together with her sister Juste's family, Ernesta, her husband Lukas, and her son are spending the weekend at a country house after Lukas's victory in a mixed martial arts tournament. The families are swimming in a nearby lake, having dinner, discussing family finances. After a near-tragic accident, the sisters become single mothers. The film follows the sisters' life in the aftermath of the tragedy.

A group of teenagers rent a house with a sauna for a party. Everybody is having a good time: dancing, singing, drinking, talking. The party ends and everybody leaves, but in the morning the housekeepers come to clean the place and in the dressing room they find a girl who is trying to find a button of her ripped up trousers.
DIRECTOR’S STATEMENT
In By the Pool a tragic event is depicted from the perspective of a group rather than concentrating on a single character personal point-of-view, in order to try and understand how one individual’s tragedy gets drown out by the tumult caused by the group as a whole.