What TV series did the old man develop to make the nanny drink?

The old man developed a potion for the nanny to drink. That's the TV series "Yanzhao Interpol".

Yanzhao Interpol according to Hebei province 15 major cases, such as Cangzhou armored car robbery, 12.7 rape and corpse burning, Hengshui/kloc-0 billion dollars fraud, propaganda minister's wife murder, Guangping car robbers robbery, Qinhuangdao transnational ice case, etc.

In the play, an old man stays at work every day and studies hard. This morning, when the nanny came back from shopping, she found that the owner had stayed up all night and had been doing research in the studio. She was very distressed and brought a cup of hot milk to the old man. The old man was very happy, because the potion he developed was successful and he would make a lot of money in the future, so he couldn't spend it all. ?

The little babysitter didn't take it to heart and wanted to cook if she didn't agree. Unexpectedly, the old man wouldn't let her go, so she had to drink the potion he developed. At first, the babysitter was very resistant. After all, she doesn't know whether it is harmful to her health. But the old man said it was a treasure, and the poor could not afford it all their lives.

The little babysitter naively thought that what the old man said was true, so she drank it without hesitation, and the medicine soon came up. The little babysitter is wobbly and a little unstable. The old man next to him smiled and spoke softly about his feelings. The little babysitter didn't have the strength to talk, so the old man quickly hugged her for fear that she would fall.

It is conceivable that what the old man did to the little babysitter was just a pity for the little girl. I thought he was here as a nanny, but I didn't expect this bad old man to be a guinea pig trying drugs.