You have to hand it to the cast of Grimm - they sure know how to keep a secret.

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The series' midseason finale threw everyone for a loop when Juliette Eve came crashing onto the scene. That's right, folks, Bitsie Tulloch is back.

Don't worry; you haven't been lied to. Juliette is well and truly dead. Although Eve has her body and her memories, the woman Nick (David Giuntoli) once loved is gone for good. Now, the hexenbiest is Hadrian Wall's most prized weapon against the Black Claw.

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For anyone who is confused, co-creator David Greenwalt promises answers will be forthcoming.

"She knows who Nick is, she knows what happened, and it all gets explained, what happened the night that Trubel shot her in the chest and neck with the arrows," Greenwalt informed TV Line.

Eve won't have any of her predecessor's emotional attachments, according to TV Line, which will make her episode 7 reunion with Nick something you won't want to miss.

"Obviously, Nick has a wild reaction," Tullock told TV Line. Needless to say, the Grimm won't be the only one to be thrown of kilter by Juliette's apparent resurrection. "Monroe's is different from the Captain's... I can't give anything else away. The fun in her character is everyone interacting with her."

Find out how Eve will affect the battle against the Wessen uprising when Grimm returns to NBC on Jan. 22 with "Eve Of Destruction."

Tags: Grimm television nbc