Episode Description: Beware, spoilers! To read - hover over the text.
Noisy neighbors haunt Joan. She is not getting enough sleep. Building owner specifically inhabits such tenants. Watson decides to make peace with the owner. Dating him. Come to an agreement. In the same house, the other neighbor, Professor chemist is the poisoning of the owner and his guests-students. They take tea based on mushrooms, but this time the mushrooms were poisonous. Charlotte, a former student, was engaged in these mushrooms, they could not cause death, someone poisoned them, which led to the death of Charlotte and other people. Hill and Watson out, what did her ex-husband.