Robert Englund is the professor who asks Jack to help with a plumbing problem at his house. This leads to an accident in which the professor finds a large box containing a black heart which was buried due to the curse on it. The heart enters the professor and turns him into a monster. When he starts killing the night school students, Jack decides to fight back and face his childhood monster fears.
Robert Englund does a good job and Trevor Matthews is likable as Jack. The movie is fun and does an okay job of mixing comedy and horror.