Aux portes de l'au-delà was released in the year 1986。Aux portes de l'au-delà is also called as From Beyond, Terrore dall'ignoto, Ritorno del tempo, Re-sonator, H.P. Lovecraft's From Beyond, From beyond - Terrore dall'ignoto, From Beyond - Aliens des Grauens, Do Além。

Scientists create a resonator to stimulate the pineal gland (sixth sense), and open up a door to a parallel (and hostile) universe. Based on a story by H. P. Lovecraft.