Set in Ewedown, a fictitious village in Dorset, England. Tamara Drewe, a young and attractive journalist, returns home with the intention of selling her now-deceased mother's house which she has inherited, and in which she grew up. Locals are amazed at the improvement in her appearance after she had a rhinoplasty while away. Andy had been interested in her when she was a girl, and when he sees her now it is clear he is attracted to her.
Across the valley is a neighbour's home where authors retreat to work on their stories. The owner, Nicholas, is a prolific crime novelist and a serial philanderer, while his wife Beth provides food, lodging, and encouragement for her patrons. At one point Nicholas embarks on an affair with Tamara, after she finishes with rock-band drummer Ben. Andy has been asked by Tamara to work on the house so she can sell it, and he becomes aware of the affairs, as do two local teenage schoolgirls (Jody and Casey) who cause some havoc due to their childish jealousy of Tamara.
Jody is infatuated with Ben, and when he leaves Ewedown after Tamara's affair, she uses her wiles to lure him back. Eventually her deceit is discovered and she receives a hard dose of reality. In a strange turn of events, Nicholas is killed somewhat accidentally by stampeding cows. Beth's friend (Glen), a Thomas Hardy scholar who had become infatuated with her over the months he spent there, reveals his love for her despite feeling guilty about Nicholas' demise, and she easily persuades him to remain at the retreat with her. By this time the true love of Andy and Tamara brings them together. Tamara then decides to stay in Ewedown after all.

Question: With whom does Tamara start an affair?
Answer: Nicholas
Alternative answer: drummer Ben