Atonement

Atonement follows a 13-year-old aspiring writer, Briony Tallis, from the failure of her first childish attempt at drama, The Trials of Arabella, to its presentation, six decades later, by the grandchildren of the ginger-haired, freckled cousins who had wanted to be its stars. Briony is the youngest of the Tallises' three children, raised virtually as an only child because a decade separates her from Cecilia and their 12-year-older brother Leon. Leon, an easy-go-lucky banker in London, brings a rich and vapid friend, Paul Marshall, home for a summer holiday, occasioning Briony's play and a formal dinner party in his honor.

The cousins, 15-year-old Lola Quincey and identical twins Pierrot and Jackson, age 9, arrive at the Tallis estate as refugees from parental divorce. Frustrating rehearsals and rivalry with Lola contribute to the collapse of the play, but its demise is more motivated by Briony's decision to write a story about a confrontation she accidentally sees between Cecilia and 23-year-old Robbie Turner, the family landscaper and childhood friend of Briony's siblings, whose education has been financed by their father. Cecilia is ready to move on with her life, but she feels obliged to give the family one last summer of attention. Robbie is looking forward to beginning medical school.

Cecilia and Robbie, albeit vaguely, that they must clarify their relationship before leaving. Preparing for the festive dinner, Robbie types a note to Cecilia that includes inappropriate sexual musings. He handwrites an expurgated version, but in a Freudian slip he hands the wrong version to Briony for delivery to her sister. Briony reads it and is shocked, convinced that Robbie is a threat to her sister.

In the library, Briony misinterprets Robbie and Cecilia making love as a physical assault. When the disgruntled twins run away, search parties are organized and Briony, searching alone, comes upon Lola being assaulted in the darkness by someone she is convinced is the monstrous Robbie.