After a lawyer hears that a friend has died by suicide, she suspects something is wrong. Although her friend had a mental illness, she had clearly been getting better. An investigation reveals that the person who murdered her was her ex-husband. The body has been cremated, and the crime scene has been renovated, so the lawyer has no choice but to start with the motive. In the end, she uncovers a shocking experiment. Her friend had witnessed it, and was killed to silence her. The real culprit is never found, and the lawyer only writes a book about the case. At last, the contractor who worked on the renovation comes forward with decisive evidence, but by then the ex-husband is dead and can no longer be brought to trial.
Theme: Justice may be late, but it will come.
