Grimm is back tonight with its mid-season opener, "Face Off." The episode airs at 9 pm ET on NBC.
Synopsis:
Grimm 2.13 “Face Off” – After Nick (David Giuntoli) learns about Juliette (Bitsie Tulloch) and Captain Renard (Sasha Roiz), he must deal with the consequences. Things get even more complicated when Nick is called to investigate his own crime. Meanwhile, the search for the key intensifies as Captain Renard finds Nick’s trailer and makes a surprising alliance. With Rosalee’s (Bree Turner) help, Monroe (Silas Weir Mitchell) informs Nick that they might be able to stop what’s going on with Renard and Juliette before it goes too far. Elsewhere, Wu (Reggie Lee) responds to a bizarre shooting at Nick and Juliette’s house.
Assignment X has an interview with
Sasha Roiz (more at the link):
AX: How does Renard feel about all his attraction to Juliette?
ROIZ: I think he is absolutely distraught by it. He has been so good at keeping himself a secret, keeping his plans secret, and plotting along the way. And he’s been very calculating. To all of a sudden lose all control and to jeopardize all the plans that he’s been setting up – it’s incredibly frustrating and terrifying for him. And so I think he would do anything to stop this romance or this infatuation, I should say. Because it’s jeopardizing his entire future. When it comes to Juliette, the potion has taken over, and it’s undone us both. It might ruin our lives, our ambitions, our aspirations. The feeling is absolute and complete infatuation, which prevents him from thinking straight, which prevents him from just living his life the way he’s known up ‘til now and being in control of his own life.
Synopsis: 
