Credit: ABC Family

Pretty Little Liars is going to take a risk with Season 4, Episode 19 (“Shadow Play”), taking us in to a world of black and white when Spencer's imagination turns Rosewood into film noir.

In fact, there's a lot to learn from these clips, so we've taken a closer look at them to see what they reveal about the episode.

1. There is some stuff in the real world. Before the show takes a leap into classic cinema, we will see some scenes set in the real world. This sneak peek, where the Liars talk about Shana, is one example.

2. What do they know about Shana? We're happy to see Spencer questioning what the Liars know about Shana (AKA not much). Sure, Shana seems to be on Ali's side, but things are often not as they appear in Rosewood, so we're glad someone is remaining skeptical.

3. Should Emily talk to Paige about it? It looks like there's a new source of tension for the Liars: Hanna and Spencer want Emily to talk to Paige about her past with Shana to try to turn up clues, which Em is not thrilled about. At all.

4. The Liars sneak around school. It looks like Hanna, Spencer, and Emily take matters into their own hands by going to Ezra's office.

5. And Mona is there! Who should the Liars spy carrying folders out of Ezra's office other than Mona? Is she stealing from him, or fetching these papers for him? Enquiring minds really would like to know what the deal is between them.

6. The book! Hanna wonders if Mona is looking for "the book," and in the beginning of the clip Spencer is holding something that looks like Ali's diary. Do the Liars get their hands on it again?

7. Aria and Ezra discuss villainy. In this clip, Aria and Ezra, driving home from the cabin, discuss a story Aria is writing, which is all about a villain. Does he win? Maybe, Aria muses. "Sometimes the villain wins."

8. Paily in the past. In this clip, we finally get to see a snippet of the noir world, as Emily and Paige discuss Paige's relationship with Shana, just like suggested in the first sneak peek.

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9. A secret relationship. Based on this clip, it appears that in noir-world, Paige and Emily's relationship is still a secret. We guess that makes sense. It was much, much rarer to be out in the '40s.

10. Distrust between Spoby. In another noir clip, Toby interrogates Spencer, suggesting that he knows she's keeping something from him. Is Spencer feeling guilty about keeping more secrets from her boyfriend?

11. Hanna the phone operator. Finally, in this clip we see Hanna hard at work as a phone operator. It sounds like she's using her skills to track down a number associated with Ezra. Even in the past, Hanna is on top of her game!

What do you make of these sneak peeks? Let us know in the comments below!

Catch the next episode of Pretty Little Liars Season 4 on Tuesday, February 11, 2014 at 8 p.m. ET on ABC Family.

What do you make of these sneak peeks? Let us know in the comments below!

Catch the next episode of Pretty Little Liars Season 4 on Tuesday, February 11, 2014 at 8 p.m. ET on ABC Family.