This article is from the Hellraiser movie FAQ, by Mario Moeller and Kalle Paulsson karl-pau@dsv.su.se with numerous contributions by others.
55 Lodovico Street.
Who is the Engineer?
The Engineer is the creature that chases Julia down the corridor in
Hell just before she meets the cenobites in her hospital room. We see
the Engineer later in the movie at the very end, when it tries to grab
the box from Kirsty.
What is Leviathan? (Hellbound)
Leviathan is the ruler of Hell's labyrinth, and takes the symbolic
form of the lament configuration. Solving this puzzle box opens
the gates to Leviathan's domain. The labyrinth represents the
maze of the mind, as we hear in Dr. Channard's opening monologue.
 
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