Simon Fisher, a chemist at a pudding company, is found dead in one of his vats and the company's owner turns out to be represented by Charlotte Richards, for whom Lucifer still has conflicting feelings. He and Chloe learn that the dead man wanted to sell his secret formula to a rival company and identify a fixer who had been spying on him. An encounter with Dan inspires Charlotte to visit Lucifer for help filling in her missing memories, but she mistakenly believes that they were romantically involved. After Lucifer clears things up, he discovers that she was trapped in Hell while his mother inhabited her body. He encourages her to confess her sins, which include withholding crucial evidence from Chloe. Using it, Ella determines that the pudding's ingredients can cause kidney failure and that Simon committed suicide to expose the company's wrongdoing. Overwhelmed with guilt, Charlotte has a breakdown and holds the owner, fixer, and rival owner hostage to force them to reveal who killed Simon. Lucifer talks her down and Chloe uses a recording he made to charge them with endangering public health. Lucifer meets Charlotte and admits that she is not to blame for his mother's actions; the two agree to start a professional relationship.