Zhu Shuang, as a stand-in who takes on the identity of others and enters the world of variety shows, accidentally binds the reasoning and time-travel mechanism and meets another stand-in, Wen Sui, who also hides multiple vests. The two traveled together through different film and television planes, relying on details to dismantle the tampered plot doubts, uncovering a series of old cases hidden under the identity of the stand-in, and tearing apart all the hidden truths layer by layer.
