The hero of the novel "To Know a Woman" is a hunter of other people's secrets. His uncanny sense of lying made him an invaluable intelligence agent. However, after the death of his wife, he resigns to be near his daughter. Now he painfully peers into his own past, and he has a vague feeling that life is an indecipherable secret code. In his book “Knowing a Woman,” Amos Oz subtly, like Strindberg, reveals the very essence of marriage.