Бумажный дворец by Miranda Cowley Heller

On a sweltering day at her family’s weathered summer house on the coast, a woman faces an urgent, life-defining choice between the husband she has built a life with and a childhood lover who resurfaces, while interwoven flashbacks reveal decades of family secrets, betrayals, addiction and grief, tracing how one impulsive night is rooted in the fragile, complicated bonds and memories that shape a life.