Anniversary

The night when the well-known suspense writer Shen Man discovered that her husband had cheated on her, her husband died mysteriously. All evidence points to her being the murderer, and the only witness is her husband's lover. In court, the lover cried and testified: "She pushed him, I saw it with my own eyes." Shen Man was sentenced to prison, but three years later she received an anonymous letter: "I was also there the day your husband died. But guess who I am?"