Help identifying this drama?

I remember a scene where an entire group of influential people were poisoned at a restaurant room by a bunch of chemicals. The chemicals were in the food, tissues, water, dessert etc. The scene was quite gruesome, and they showed each person die. Does anyone know the name of this drama?

Note: definitely not gonna help, but I found what the chemicals were from my dictionary searches - oleander, mercury, lead and arsenic.

EDIT: It was God’s Quiz: Reboot.