In 1974, Jeremy Irons stars as Tom Crick, an anguished English-born high school teacher in Pittsburgh who begins a painful reassessment of his life as his wife, Sinéad Cusack Mary Crick, starts to unravel and longs for a son they never had. To cope with the strain around him, Crick reshapes his history lessons, turning the classroom into a theatre of memory and transparency, and he begins narrating his own life to the students, weaving three generations of his family into the curriculum. The tale unfolds through vivid flashbacks that follow a teenage Crick and his mentally challenged older brother, David Morrissey as Dick Crick, as they grow up in The Fens of England under the shadow of World War II, with their widowed father watching over them.
One day, Crick returns from teaching to a shock: Mary has abducted a child from a supermarket, convinced the child is hers and a gift from God. Tom helps her return the baby, but Mary later leaves him and disappears. Crick then reveals to his class how he and Mary shared a teenage romance during the war, a romance that culminated in a disastrous abortion that left her infertile. He is haunted by guilt over this and by memories of jealousy when he suspected that Mary was drawn to his brother Dick, and perhaps carrying Dick’s child. During that turbulent time, Mary was said to have intimate encounters with Dick; Tom had asked her to “teach” his older brother about sex, and Mary later denied any affair, insisting she was carrying Tom’s child. The family’s history becomes entangled with the rumor of an incestuous connection between Mary and their grandfather, and a failed abortion performed by an old gypsy and medicaster by the riverbank.
Back in the present, Crick’s storytelling deepens as he forms a bond with one of his students, Ethan Hawke as Matthew Price, a young man who worries about the future and seems to understand the deeper purpose behind Crick’s history lessons. Crick also recounts his mother’s life as a nurse in a manor converted to a psychiatric hospital after World War I, a place connected to Crick’s grandfather, a successful brewer and a respected figure in The Fens. Whispers persist about whether Dick is the product of an incestuous union between Mary and their grandfather, a revelation that compounds the weight Crick must carry. A letter from the grandfather confirms a troubling truth that Tom himself was conceived by his mother and his grandfather—a revelation that shakes the family’s foundations.
The narrative intensifies as the past bleeds into the present: the young Dick murders Freddie Parr, Callum Dixon as Freddie Parr, after suspecting him of Mary’s affections or of fathering a child. Tom confronts Dick, and the confrontation spirals into tragedy; Dick’s actions end with him drowning, leaving Tom to grapple with guilt and the impact of hidden histories on the people he loves. Crick’s professional life unravels as he is dismissed from teaching following complaints about the direction of his lectures and the personal borders he crosses in his storytelling.
In his final classroom address, Crick speaks directly to Price and the rest of the students, urging them to hold onto hope for a better future for humanity and for themselves, a message that echoes beyond the school walls. After leaving the school, Crick returns to the Fens, hoping for reconciliation with Mary. The film closes with Crick walking toward Mary by the lakeside, the open fields and the quiet water suggesting new possibilities even as the past continues to reverberate through his life.
