At Su Lin's birthday party, his girlfriend Lin Wei, who had been in love for three years, not only broke up with her in public, but also died strangely on the hotel terrace. All the evidence points to Su Lin, and he becomes the only suspect. In order to clear his grievances, he was forced to be involved in a bottomless whirlpool of conspiracy, only to find that Lin Wei's death was just the beginning of a series of bloody mysteries. Everyone who is close to the truth will encounter unexpected events, and his birthday is actually the starting point of all tragedies.