It follows the life of a bisexual[5][6] succubus named Bo, played by Anna Silk,[7][8] as she learns to control her superhuman abilities, help those in need, and discover the truth about her origins.

[13] It’s kind of tough growing up thinking that you might have a shot at being prom queen and find out that you're part of some ageless secret race that feeds on humans.Bo is a Succubus who grew up in an adopted human family, unaware of her non-human nature and of the Fae world she descended from.

She began to feel "different" when she entered puberty and didn't know she was not normal until she accidentally killed her high school boyfriend by draining his life energy during her first sexual encounter.

[25] On August 13, 2009, Canwest announced that the Showcase television channel, a subsidiary of the main company, had given the green-light for a 13-episode, one-hour supernatural drama series named Lost Girl.

[26] On April 6, 2010, Prodigy Pictures reported that "principal photography is underway for 13 one-hour episodes of the new original Canadian fantasy-noir series, Lost Girl.

A companion website for the series is being produced concurrently and will launch with the show to give viewers an unprecedented, interactive experience.

On June 22, 2010, Keyframe Digital Productions Inc.[29] reported that they had been given the contract for visual effects on the first thirteen episodes of Lost Girl.

On the same date, a press release indicated that Lost Girl cast and crew would be making an appearance at Fan Expo Canada in Toronto on August 27–29, 2010, where they would be answering questions about the show and have promotional items available for audience members as well.

The consensus reads: "Strong storytelling and intriguing characters help make Lost Girl a better-than-average supernatural/sci-fi series, even if the special effects leave something to be desired.

[44] Vladislav Tinchev, writer for the German site Serienjunkies wrote that the series would benefit from "revealing more background information about the represented world," rather than spend time on "clumsy action scenes".

"[45] In anticipation of its United States premiere, Brian Lowry of Variety wrote: "At first glance, Lost Girl looks like another one of those Canadian imports picked up mostly for financial reasons.

The pilot, however, proves unexpectedly fun—a sort of diluted version of True Blood... but the show has wit, style and an enticing lead in the leather-clad Anna Silk.

"[46] Writing for The New York Times, Mike Hale said: "Like other fantasy-tinged shows on Syfy and USA, it offers the minor pleasures of formulaic fantasy and weekly puzzle solving, though in a cheaper-looking and less original package than usual...."[47] In a post-premiere review for The Huffington Post, Mauren Ryan wrote: "No one can say there's been a dearth of genre-tinged programs on television in recent years.

The vampire boom of the mid-aughts was followed by the zombie bonanza of the last couple of years; all in all, we're awash in various undead and otherworldly creatures...But one of the reasons Lost Girl has made such a big impression on me...is because the Syfy show does what so many genre programs fail to do these days: It has fun with its premise...But don't expect Lost Girl to be perfect: Bo's universe can seem constricted at times, the weekly clients and monsters aren't always interesting and occasionally the storytelling has abrupt moments.