Rachel Crane has it all: loving parents, family wealth, and a younger sister, Isabel, whom she adores—until one night in Paris changes everything.

When a nightclub shooting leaves Isabel permanently injured, Rachel is consumed by guilt over her role in the tragedy. Seeking atonement, she abandons her own ambitions to live out Isabel’s, starting over in Chicago as a therapist.

But when her fierce and complicated new client, Hailey Reynolds, begins to challenge her, Rachel is forced to confront the past she’s spent years trying to outrun. As the two women’s lives intertwine, Rachel is drawn out of isolation—only to face another loss that threatens to unravel everything she’s rebuilt.

Laced with humor, heartbreak, and the messy beauty of healing, The Sun in Winter is a story of guilt, forgiveness, and the courage it takes to begin again.