Medical student Shangguan Qingyun clashed with his mentor Zhou Hongliang due to a negative review of his internship report. He met a ghost who claimed to "believe" on the Internet late at night, and the other party knew about his private affairs and "pointed" him. In fact, "Believe" is a conspiracy: Zhang Zhiyi, who has a crush on Shen Yu, conspired with "Believe" to use the characteristics of five people (Shangguan, Zhou Hongliang, Shen Yu, Chen Bing, and Zhang Zhiyi) who were born on the same day in a leap month to control everyone in the name of "four leaps of resurrection". Shangguan mistakenly believed "Believe" and wanted to harm Zhou Hongliang, but accidentally injured Zhang Zhiyi; Chen Bing also got involved in order to catch up with Shangguan. In the end, Zhou Hongliang fell from the building, Shangguan "committed suicide", and Chen Bing was killed. After Zhang Zhiyi woke up, he used smoke soaked in the blood of three people to break the "belief". Although everyone was resurrected, they forgot about him, and only Chen Bing was willing to get to know him again.
