Web of the Spider (Italian: Nella stretta morsa del ragno) is a 1971 horror film directed by Antonio Margheriti.

Later, a journalist named Alan Foster (Anthony Franciosa) visits Poe to drive him out of madness, but he is forced to challenge the horror writer on the authenticity of his stories.

This leads to Foster's accepting a bet from Lord Blackwood to spend the night in a haunted castle on All Soul's Eve.

He meets the following ghosts: Elisabeth Blackwood (Michèle Mercier), who falls in love with Foster; the annoying and easy-to-hate Julia (Karin Field); the rough criminal William Perkins (Silvano Tranquilli); and the most despicable one of all, Dr. Carmus (Peter Carsten).

[2] After Castle of Blood's disappointing box office, Margheriti felt he could remake the film as Web of the Spider in colour in 1970.