Director David Cronenberg would go on to make many films far superior to Rabid, but as an early example of one of his body horrors it's worth a look.
Cronenberg cast porn star Marilyn Chambers in the lead role after the studio rejected his first choice of Sissy Spacek (which seems crazy in hindsight given she was on the cusp of her Carrie stardom, a poster for which can be seen at one point in this film), and she gives one of the best performances here. In truth she isn't given much competition, as the majority of the acting on display comes across as amateurish.
To be fair, the cast don't have much to work with, as the characters are…