He's Poor... Or Is He? - Episode 6

Chairwoman is interrupted when a visitor who claims to be her husband asks to enter; guards reluctantly let him in after staff admit hidden people were missed. The man brings a meal of rare herbs, insisting it's medicinal because "you're sick." When she refuses, her legs suddenly fail; he tells her it will pass in ten minutes. Asked what illness, he first jokes "osteoporosis," then admits, "It's bone toxin." The office reels as the Chairwoman lies immobilized and his confession leaves her fate uncertain while the toxin's clock starts ticking.