Razor and blades model the disposable safety razor and founder of Gillette Safety Razor Company, Gillette did not originate this model. The urban legend about Gillette is that he realized that a disposable razor blade would not only be convenient, but also generate a continuous revenue stream. To foster that stream, he sold razors at an artificially low price to create the market for the blades. But Gillette razors were expensive when they were first introduced and the price only went down after his patents expired: it was his competitors who invented the razors-and-blades model. This model has been used in several businesses for
A Blade in the Dark and neighbors are murdered by a razor-wielding slasher, and there is a weird next door neighbor who is a key suspect. Lamberto Bava was offered to direct "A Blade in the Dark" while he was assisting Dario Argento on "Tenebrae" (1982). The film was written by the husband and wife writing team of Dardano Sacchetti and Elisa Briganti. Bava and Sacchetti recalled that their collaboration was difficult, with the two being more friendly during the production of "Twitch of the Death Nerve" (1971), but their approach to this film was at odds with each other. The film was initially commissioned