Watch Halloween Is Grinch Night 123movies online for free. Halloween Is Grinch Night Fmovies: When the sour-sweet wind starts blowing again, the Whos retreat to their homes because they know the Grinch will soon be a'prowlin. Young Eukariah Who has to make a trip to the Euphemism (outhouse), when the wind blows him away to a confrontation with the gruesome Grinch. Eukariah decides that the Grinch must be stopped, so he faces his fears and confronts the Grinch and his spooks.