“What happens when one day you realize you’re not alone, and there are people out there who look just like you?” This is the idea behind Orphan Black, an upcoming SPACE original series critics are calling “A twisty, mind-bending sci-fi thriller” and also saying swell things like “All we saw was a clip of this series about clones, but that was enough for me. All in.” 

Premiering Saturday March 30 at 9E/6P (right after an all-new episode of Doctor Who), Orphan Black is a 10-part biological thriller starring Tatiana Maslany (Cas & Dylan, Picture Day) as Sarah, an outsider and orphan whose life changes after witnessing the suicide of a woman, Beth, who looks exactly like her. Sarah assumes Beth's identity, her boyfriend, and her bank account. But instead of solving all her problems, the street-smart chameleon is thrust headlong into a kaleidoscopic mystery. Sounds like one doozy of a premise, no?

Orphan Black also stars Jordan Gavaris (Degrassi) as Felix, Sarah's foster brother; Dylan Bruce (NCIS) as Paul, Beth's complicated boyfriend; Gemini Award-winner Maria Doyle Kennedy (Downton Abbey) as Mrs. S, Sarah and Felix’s hard-nosed foster mother from across the pond; Kevin Hanchard (Republic of Doyle) as Art, a veteran detective; Michael Mando (The Killing) as Vic, Sarah’s sporadically violent ex; and Skyler Wexler (Alphas) as Kira, Sarah’s seven-year-old daughter.

If all of this exposition is making your head spin, check out the sneak peak for less chat and more thrills.