The Texas Chainsaw Massacre (a horror classic in its own right) was loosely based on a true story of a series of Texas killings and based on the life of Ed Gein. Not sure how accurate the retelling of said story was but in this the sequel, from my understanding it took a LOT of liberties with the truth but the plot departs further into a more twisted tale of mass killings, taking place 13 years after the still unsolved murders portrayed in the original film.
This is a higher budget, and much gorier continuation of the story, focusing on not only on Leatherface but the rest of his family. I guess the family that plays together , stays together.
Having said that, if you can suspend some disbelief in the plot and timeline (like how did the family get so much money/time to create the entire underground section of the farm between the times of part 1 and this movie...) this is a great watch and captivating from start to finish. The twisted depravity of Leatherface's family is captured perfectly... has a very similar feel in parts to Rob Zombie movies like "House of 1000 corpses" perhaps this was an influence on a young mr. Zombie? Who knows?
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