Spider-Man Noir is an alternate reality version of Spider-Man from the universe of Earth-90214. This universe is set in 1933 (during the Great Depression) and all of the Marvel characters who appear in it are noire versions of themselves who coexist with historic figures of the era.
Peter Parker was a man raised by his activist uncle Ben Parker only for Ben to be murdered by the mobster Norman "The Goblin" Osborn. Motivated by his uncle's teachings to avenge the death and right the evils of society, Peter began investigating a smuggling ring of ancient statues run by the Goblin.
One night, one of these statues broke open and released a horde of spiders, one of which bit Peter causing him to go comatose and have dreams of spider gods. When Peter woke up he found himself with spider-like powers including organic webbing from his wrists, a spider sense, and wall-crawling.
Taking advantage of his new abilities, Parker began to wage a one-man war against the criminal underworld in New York City as a brutal and feared vigilante, known as The Spider-Man. By day however, Peter was a private-investigator who used his detective skills to fight evil. Unlike most Spider-heroes, Spider-Man Noir believed that, "If there is too much power, it is the responsibility of the people to take it away".
Peter has fought alongside his fellow Spider-heroes from across the multiverse on many occasions.