The play begins with Zhang Dongsheng pushing her parents-in-law off a cliff, and then the story slowly begins to explain why. It turns out that Zhang Dongsheng is a math teacher in Children's Palace, and there is no compilation. At the beginning, he came to this city alone for love and became the son-in-law of the Xu family. Now he is facing the dilemma of losing his family and marriage, and his parents-in-law are urging his wife Xu Jing to divorce. So Zhang Dongsheng killed her parents-in-law, took the opportunity to accompany the two old people to climb the mountain and pushed them off the cliff.
On the surface, Zhang Dongsheng's marital conflict is caused by his poor job and low income. After all, a teacher who hasn't prepared for eight years must be short of money, and his relatives and friends also laugh and look down on him, but this can only be regarded as a secondary reason. More importantly, Zhang Dongsheng is infertile, that is, he has sexual dysfunction.
Zhang Dongsheng's sexual dysfunction caused him to be married for eight years without children, which was the fundamental reason why the old couple would participate in their daughter's marriage, while Zhang Dongsheng's father-in-law kept saying a word to Zhang Dongsheng? Are you two unhappy together? In fact, this sentence can also be understood as? No sex? . This kind of sexual happiness certainly does not come from marriage, but from Zhang Dongsheng's long-term medication after his illness. So what's the problem with Zhang Dongsheng?
Zhang Dongsheng actually has diabetes, which has been reflected in the play. In the last episode, police officer Ye asked about the class record. When Zhang Dongsheng opened the drawer, there was a box of diabetes medicine under the student attendance record. Many viewers may think that this is just a drug that Zhang Dongsheng bought temporarily to kill his wife. Because his wife was suffering from hypoglycemia, Zhang Dongsheng secretly changed one of the medicines into a medicine for treating diabetes, which also played a role in lowering blood sugar, so that when his wife finished taking the medicine, her blood sugar would be lower, and finally Xu Jing died in the sea!
According to Zhang Dongsheng's shrewdness, he would never leave such important criminal evidence, and it should have been destroyed long ago, but this box of medicine for treating diabetes appeared in the drawer of his office, indicating that Zhang Dongsheng needed to take this medicine to treat his diabetes, so he always took it with him!
The hint that Zhang Dongsheng suffers from diabetes can explain why he overeats after class. Taking hypoglycemic drugs for a long time will cause kidney damage, resulting in hair loss and sexual dysfunction. Therefore, Zhang Dongsheng's marital conflict is more due to his infertility. The cheating of his wife Xu Jing can only be the result of their unhappy marriage, not the cause of contradiction.
Xu Jing's reluctance to file for divorce may also be a reflection of old feelings. After all, Zhang Dongsheng is a good man who cares about his family. It can be considered that their love was beautiful at the beginning, but many factors in marriage will make love no longer sweet. In reality, many people's love is defeated by the reality of marriage, and so is Zhang Dongsheng!
Zhang Dongsheng tried his best, but he still couldn't do it. An unhappy married life will only lead to the cheating of his wife Xu Jing!