★★½ (2½ out of 4)
If going to the dentist strikes you as entering the gates of hell, then “Insidious: Out of the Further” will be the fright fest for you. Advance word says only “Spider-Man: Brand New Day” will beat it at the box office. There’s definitely an audience out there. And this sixth chapter in the “Insidious” series is coming in hot as a new family gets itself mucked up with “the Further”—a purgatorial place inhabited by the tortured spirits of the dead who would like nothing better than slither back to the real world and suck the life out of you.