Mein Herz So Weiß by Javier Marias

A newly married narrator becomes quietly obsessed with the concealed past of his wife's family after a cryptic remark at their wedding; as he pries into long-buried silences and an unexplained death, he uncovers betrayals, infidelities and the moral weight of secrets. The novel unfolds as a slow, introspective investigation that dissects language, memory and the ethics of confession, showing how omissions and small lies shape identity, marriage and the possibility of trust.