Lin Wei, a 30-year-old middle-level executive in an Internet company, suddenly received an anonymous email from a deceased person during the critical period of promotion. The attachment was an "unnamed memo" - recording the company's gray operations in the past three years (data fraud, customer information leakage, high-level profit transfer), and the memo's signature abbreviation was exactly the same as that of her former colleague Chen Mo who had just resigned and died in an "accidental" car accident. Lin Wei discovered that her name also appeared in the "insider list" of the memo. If the memo was exposed, she would become the biggest scapegoat. If she concealed it, she would not only violate the bottom line of her career, but may also be silenced by the mastermind behind the scenes.