Castle season 7, episode 13 airs tonight and Castle might finally get his own case to solve without the recommendation of Kate. Check out the promo images and read the synopsis ahead of the episode here!

Need a reminder of what happened on Castle last week? Check out our Castle season 7, episode 12 recap here.

Well, last week was a bit of a letdown for this Castle fan but tonight’s episode sure looks promising! After getting a client from Kate and solving two cases, his own and Kate’s murder victim, Rick will have to use all his wits and will to solve a murder no one believes happened.

The official synopsis for Castle season 7, episode 13, “I, Witness” is: “Castle is hired to uncover if a client’s husband is having an affair, but the case takes a shocking turn when Castle witnesses the client’s murder – by her husband. But with no proof that the killing took place, Castle and Beckett must investigate to expose the truth.”

The guest cast includes Brianna Brown as Eva Whitfield, Ivan Sergei as Cole Whitfield, Gregory Zarian as Scott Galloway, and Audrey Marie Anderson as Aubrey Haskins.

In case you missed it, we discuss the recent lack of Alexis in the storylines here.

Why is Ryan talking so seriously to Esposito in the pictures below? Could he be talking to him about his recent reluctance to give Castle’s new job a chance? Or could it be something different?

Check the stills below one more time to see if there is anything you might have missed before tonight’s episode!

Watch ‘Castle’ online

If you’re unable to watch the episode live, ABC offers full episodes of Castle on its official website. However, they typically aren’t up for several days.

Check back later tomorrow for the full recap of tonight’s episode of Castle!