Based on a novel of the same Korean title by Kang Ji-young, the story is about a girl who lost her parents and grew up in the hands of her uncle who runs a suspicious online shop.

She is pursued by a variety of individuals, including rival killers, powerful organizations, and even law enforcement, all of whom want to capitalize on her uncle's connections and the resources he left behind.

A Shop for Killers was developed under the working title The Killers' Shopping Mall,[14] is co-directed by Lee Kwon and Noh Kyu-yeop, co-written by Ji Ho-jin and Lee, co-produced by Merrychristmas (a subsidiary of A2Z Entertainment) and Project Onion, and provided by The Walt Disney Company Korea [ko].

[2] In December 2023, Seo Hyun-woo, Jo Han-sun, Park Ji-bin, Geum Hae-na, and Kim Min [ko] were revealed to play various roles in the series.

[25] Joel Keller of Decider stated that the series "keeps things pretty straightforward to start, which leaves a lot of room for some good action scenes and some exploration of its two main characters".

[26] Sayantan Gayen of Comic Book Resources wrote that it "still has miles to go" but "how things will line up, the first two episodes successfully make viewers anxious to get their hands on the next installment".

[30] Disney+ announced that the series was the most viewed local original on the platform in the Asia Pacific region[note 1] in 2024,[31] until it was surpassed by Light Shop in December.