There are few weak performances in the smaller roles and the film at times slips into didactic speeches, but Corman’s strong direction drives home the film in powerful scenes and striking imagery ...

Despite a middling script, The Intruder delivers (without preaching) a strong statement against the evil of bigotry.

Shatner gives a very scary performance (this was pre-"Star Trek"). Corman's direction is gritty and uncompromising.

...suffers from an amateurish vibe that extends to virtually every aspect of the proceedings.