A mom and dad hit their son upside the head several times.
The main character is obsessed with chemistry, particularly poisons. He poisons several people, including members of his family, and they are shown ill and sometimes vomiting. One woman has blood on her mouth. Most of the other people vomit a lot and lose their hair.
A man discusses how he killed his parents. He describes several vivid and violent dreams. He later hangs himself and is shown hanging.
A man dreams of hanging himself.
It is implied that a man kills himself by ingesting metal shavings.