Inga and Barði decide to get married in a church in the countryside. They hire one bus for each family and guests and a band to play in the party. Inga travels with her parents and brother; her best friend Lára that brings her senile grandmother and her flirt Egill; and her mother's mate Svanur that has also a secret affair with Lára. Barði travels with his parents and sister Auður; the gay cousin of his father and his mate; and his friends SÑði that Inga Hates and Grjóni that arrives later. They get lost and while seeking the church, the tension increases and secrets are disclosed in the dysfunctional families and friends in the great day of Inga and Barði.