<P> On Halloween night 1963 , in Haddonfield , Illinois , 6 - year - old Michael Myers , dressed in a clown costume and mask , stabs his older sister Judith to death with a kitchen knife in their home . Fifteen years later , on October 30 , 1978 , Michael 's child psychiatrist , Dr. Sam Loomis , and his colleague Marion Chambers arrive at Warren County Smith 's Grove Sanatarium . Michael escapes from Smith 's Grove , stealing the car that was to take him to court . Returning home to Haddonfield , Michael kills a mechanic for his uniform and steals a white mask , a knife and some rope from a local store . </P>
<P> On Halloween night 1963 , in Haddonfield , Illinois , 6 - year - old Michael Myers , dressed in a clown costume and mask , stabs his older sister Judith to death with a kitchen knife in their home . Fifteen years later , on October 30 , 1978 , Michael 's child psychiatrist , Dr. Sam Loomis , and his colleague Marion Chambers arrive at Warren County Smith 's Grove Sanatarium . Michael escapes from Smith 's Grove , stealing the car that was to take him to court . Returning home to Haddonfield , Michael kills a mechanic for his uniform and steals a white mask , a knife and some rope from a local store . </P>
the movie halloween primarily takes place in which state
the movie halloween primarily takes place in which state
Illinois
Illinois