The series revolves around the story of an elite assassin known as "The Bean," who works for a top-secret organization known as "The Syndicate." The Bean, whose real name is Jack, is a highly skilled and deadly assassin with a troubled past. He is joined by other skilled assassins, including Sniper, Lady Killer, and Tech-No-Logic, who form a team known as "The Syndicate's elite squad."

The series also explores themes of loyalty, friendship, and redemption, often delving into the complex backstories of its characters. The show's tone is often dark and humorous, with a touch of satire and social commentary.

Killer Bean has gained a significant following worldwide, with fans praising its unique style, engaging storylines, and memorable characters. The show has been streamed millions of times on various platforms, including YouTube, Vimeo, and adult animation websites.