Plot introduction to Moonlight Panic 2

The story of this film is still on Halloween, when Michael Myers regains his freedom after escaping from the control of Dr. Loomis (played by Donald Pleasence). For this reason, Myers is wanted by the entire police department. Myers has always regarded Laurie Strode (Jamie Lee Curtis) as his next victim. Due to the excessive shock caused by Myers in the previous episode, Laurie was admitted to Haddonfield Hospital for treatment. Only Dr. Loomis and Sheriff Brackett (whose daughter was murdered by Myers) are aware of the fact that Myers is in town, and one other person also unknowingly senses that Myers is closing in on Laurie. When Myers chased him to Haddonfield Hospital, he killed almost all the medical staff. At the same time, Marion Chambers, one of the participants in Loomis' plan to use Myers as a test subject, met Loomis. Marion told him the reason why Myers pursued Laurie: it turned out that Myers was Laurie's brother. Loomis fought off senior officers who wanted to return him to Smith's Grove and rushed to Haddonfield Hospital in the hope of stopping Myers' killing.