in the begining of the trailer there was a dude that people followed with misteltoes and fackels and then he fled into a wooden house or something and it burned down  but the main movie is about this mom and her child they moved to an old big house in the forest and then the kid (its a boy) goes out and plays and he finds some weird monster friends and the he brings them home and his mom is like what are those things your friends? thats weird go away from them n stuff and she is really shoked 

thanks for your answers 

love fistmeharderdaddy