Several female students at a women's art college were discovered to be pregnant at the same time. However, these female students were all recognized as good students and had never been in love. They had never been found to have any interactions or contact with any men, let alone have any ambiguous relationships with any men. The case was bizarre and unbelievable. In order to solve the case, the Women's Criminal Police Team, under the leadership of squad leader Gu Yanan, dispatched female investigators Sun Yuanyuan and others to stay in the girls' dormitory one after another, eating, living and attending classes with these female students, trying to find clues to solve the case. However, a series of bizarre phenomena occurred, especially the mysterious death of female scout Li Na. The mysterious DNA left in Li Na's body directly pointed to Dang Jianhua, who had been dead for two years. Is it a human or a ghost? Confusing...
Purpose: Through the development of the plot of solving the case, introduce relevant scientific knowledge such as chromosomal abnormalities.