Cai Xiyan's father gave the dog to Cui Liang's father to deal with it, when he was cleaning up the house, Cai Xiyan accidentally found that Dabai was eaten by Cui Liang's father and son, Cai Xiyan kept tears and squatted at the door of his house with illness in the winter and cried all night, and when the family found him, he was already in a coma with a high fever.

When he woke up in the hospital, Cai Xiyan found that the two dogs were not dead, they had been by his side, and in his consciousness, he appeared at that time the big yellow dog whose second personality was abused to death and the big white dog whose third personality protected him and died. At that time, his parents' business was getting better and better, so they moved to the city, and he couldn't and didn't dare to raise a dog anymore, and with the company of rhubarb and Dabai, he became a lot less lonely and cheerful, and he didn't have many friends since he was a child because he often moved.

Cai Xiyan was bullied in the sixth grade of primary school, and then bit each other like a dog, and his parents lost money and blamed him. A similar incident happened in junior high school, and since then no one dares to mess with him, and everyone has stayed away from him. Since he was always moving, his parents never cared about him.

Until the year of high school, because he was handsome, he was excluded, and finally bit others, that time because he was bullied for a long time, so it has been the behavior of the dog to protect himself, and he was ordered to drop out of school by the school, which will stabilize the parents' business and have time to care about this son who is going to take the college entrance examination, the teacher minds to see a psychiatrist, and the doctor confirms his dual personality, the dog in his heart is protecting him, and he prescribed medicine, and the condition has been no one to take care of after going to college, so he rented a house outside and raised these two dogs, a few years, back, dogs and coffee shops. Cui Liang came to the door, ignored it, went on a business trip to let a friend look at the dog, the dog lost at the beginning to blame the friend, the friend said that someone deliberately kidnapped it, and saw the person's face, for a while it turned out to be Cui Liang, I didn't understand why I wanted to tie the dog, and then I looked for the police to ignore it,

Seeing that day, when I went to interrogate, I saw the photos of his two dogs being skinned on Cui Liang's mobile phone, and said that he didn't come to him, he wanted to find him, and when he saw Li Yi, the explosion of personality, he knew that the fire was put by Cui Liang, the dog was proposed to be eaten by him, the rhubarb was deliberately tortured, and the lame puppy was fed to the fish by the disemboweling slope.

After the fight, Cui Liang went to the café and threw the two bloody dog heads and five furs to him, asking for 100,000 yuan, and said that the money was really good. originally wanted to kill Cui Liang alone, but together with Li Yi, he saw the two women who showed their faces the most in the video and the two women who went there the most in Li Yi's investigation, and then killed Xu Juan in the room, and the venue information provided by Li Yi arranged the venue together, and then did not let Li Yi participate in it, and killed people by himself.

The dog head did it himself, and at night he tricked Cui Liang into a place, knocked him out with a brick and then injected him, and then dragged him to the room, the room where he and his father ate dogs, he arranged it in advance, a sack of mice, and he didn't want him to die at the time, but he didn't expect to hate it too much, and he died.