Set in Glasgow, the film tells the story of the Khan family. Casim is the only son of Pakistani Muslim immigrants to Scotland. He has a younger sister, Tahara, and an older sister Rukshana. Casim's parents, Tariq and Sadia, have arranged for him to arranged marriage his first cousin, Jasmine, and Casim is more or less happy with the arrangement. He then meets and falls in love with Roisin, an Irish Catholic immigrant (who is a part-time music teacher in Tahara's Catholic school). Roisin books a short holiday break for them both on seeing an advert in a travel agent's shop window, and while on holiday Casim tells her about the arranged marriage his family are planning for him. They then have to decide whether their love is strong enough to endure without the support of their respective communities.