, ▁and ▁re - ed ited ▁the ▁whole ▁thing ▁into ▁an ▁entirely ▁different ▁film ▁entitled ▁Blood ▁of ▁Gh ast ly ▁Hor ror . ▁This ▁version ▁was ▁very ▁successfully ▁the atr ically ▁distributed ▁for ▁many ▁years ▁to ▁drive - ins ▁by ▁Adam son ' s ▁distribution ▁company ▁Independent - Intern ational , ▁and ▁was ▁even ▁sold ▁to ▁late ▁night ▁television ▁ret itled ▁The ▁Man ▁with ▁the ▁Syn th etic ▁Bra in . ▁ ▁Plot ▁Joe ▁Core y ▁is ▁an ▁injured ▁Vietnam ▁War ▁veter an ▁who ▁has ▁become ▁viol ently ▁ins ane ▁because ▁a ▁mad ▁scient ist ▁named ▁Dr . ▁Van ard ▁( John ▁Car rad ine ) ▁experiment ed ▁on ▁his ▁brain . ▁The ▁scient ist ▁had ▁tried ▁to ▁fix ▁the ▁young ▁man ' s ▁sh rap nel - in j uries ▁with ▁electric ▁shock ▁ther apy , ▁but ▁has ▁turned ▁him ▁into ▁a ▁ps y cho ▁instead . ▁Core y ▁at ▁times ▁becomes ▁an ▁un cont roll able ▁be ast . ▁After ▁he ▁viol ently ▁mur ders ▁a ▁co ck tail ▁wait ress ▁in ▁a ▁mot el ▁room , ▁he ▁goes ▁in ▁search ▁of ▁Dr . ▁Van ard , ▁seeking ▁reven ge ▁for ▁what ▁the ▁old ▁scient ist ▁has ▁done ▁to ▁him . ▁In ▁a ▁mind less ▁ra ge , ▁Core y ▁stra ps ▁Dr . ▁Van ard ▁to ▁his ▁own ▁lab ▁equipment ▁and ▁elect roc utes ▁the ▁mad ▁scient ist . ▁Core y ▁commits ▁a ▁j ew el ▁rob ber y , ▁and ▁then ▁stal ks ▁a ▁young ▁woman ▁and ▁her ▁little