Tên Điên Giết Người - Maniac (1980)

William Lustig's 1980 cult classic, Maniac, transcends the typical slasher film narrative, plunging audiences into the disturbed psyche of serial killer Frank Zito, masterfully portrayed by Joe Spinell. Far from a conventional horror film, it's a gritty, unrelenting character study, eschewing cheap scares for an immersive descent into Zito's profound psychological torment and mommy issues. Lustig's raw, handheld cinematography, often adopting the killer's first-person perspective, crafts a suffocating, almost documentary-like atmosphere, perfectly capturing the urban decay and grime of late 70s/early 80s New York City.

The film's visceral impact is undeniably amplified by Tom Savini’s groundbreaking and notoriously graphic practical effects, which pushed boundaries and cemented Maniac’s place in exploitation cinema. Spinell's performance is the cornerstone, presenting not just a monster but a complex, deeply lonely, and psychotic individual, making him one of horror's most unsettling protagonists. Maniac stands as a seminal work in psychological horror and the slasher subgenre, influencing subsequent films that dared to explore the killer's warped reality, solidifying its status as a quintessential "video nasty" and an enduring piece of grindhouse cinema history under the direction of William Lustig.