Annalise Keating (Viola Davis) has been hard at work taking the stand to defend various clients on Season 2 of ABC's hit crime drama "How to Get Away With Murder." While new cases tend to come and go on the show, the murder trial against Caleb (Kendrick Samson) and Catherine (Amy Okuda) Hapstall has made it's way into each episode thus far. The case's prevalence in Season 2 has left many wondering what it is that's so important about this particular trial and we think we may have cracked the case ahead of episode 5, "Meet Bonnie."

Since their introduction in Season 2, episode 1 Annalise has been largely focused on clearing Caleb and Catherine's names in the murder of their parents and aunt. The prosecution continues to try and prove that the adopted siblings are engaging in a romantic relationship, which would double as a motive for the murders, while Annalise has worked tirelessly to prove otherwise. During episode 4, she decided to get creative in her efforts, sending Michaela (Aja Naomi King) in to get some special intel on Caleb. The star law student found herself taken with Caleb against the cautioning of her wise teacher. With much of Thursday's episode focused on the Halstead boy, we couldn't help but wonder -- what is it about him, specifically, that's driving Annalise?

During Season 1, episode 2 Asher (Matt McGorry) and the rest of the Keating five began speculating about Annalise's affinity for Wes (Alfred Enoch). Asher speculated that she may be favoring him because he was her child, suggesting that she may have given him up for adoption. While the theory made sense, given the fact that Wes doesn't seem to have parents, it has been seemingly disproved by clips suggesting a romantic relationship will brew between the two at some point during the latest season. Still, that doesn't dismiss the adoption theory entirely. Perhaps Annalise has been so drawn to Caleb because he is her long lost son, given up for adoption years ago. During "Skanks Get Shanked" he opened up to Michaela, revealing that he was adopted by the Halsteads at the age of six. He claimed that everyone else wanted babies, but they saw past that and took him in. 

We're crossing out fingers that the connection between Annalise and Caleb will be made during "HTGAWM" Season 2, episode 5. Here are five other things to look out for in "Meet Bonnie":

  • The episode will likely focus on Bonnie's (Liza Weil) confession to Asher at the end of episode 4. She takes full responsibility for having killed Sam Keating (Tom Verica) in Season 1. Asher appeared noticeably shocked by the revelation, but will it be enough to coax him into staying with the Keating five?

  • Viewers should also expect to get a little more acquainted with Bonnie, for whom the episode is named. She has played an important part in much of Season 1 and 2 working as Annalise's right-hand-woman and starting a short-lived relationship with Asher.

  • We may also learn who was responsible for prosecutor Emily Sinclair's (Sarah Burns) death. During episode 2 it was revealed that she had been killed in the parking garage where she and Asher frequently meet to discuss the case they're trying to build against Annalise. At the close of episode 4 Bonnie, who was revealed as Rebecca's (Katie Finlay) killer during the premiere, shows up at the end of the meeting. Could she kill again?

  • ABC's synopsis for episode 5 suggests it will feature a storyline about Frank (Charlie Weber). He will reportedly find himself involved in a situation "that hits close to home," though it is unclear what that situation may be. Previews for the episode also show that he and Laurel (Karla Souza) may finally get intimate, pushing their relationship to the next level.

  • The synopsis also reveals that Wes' quest for information about Rebecca's death, which is being fueled by her brother Levi (Matt Cohen), will result in a nasty confrontation in "Meet Bonnie." During episode 4 he revealed to Nate (Billy Brown) that he and Levi have potentially found her body. He is seen discussing those details by Annalise which leads us to believe he confrontation may be with her.

"How to Get Away With Murder" airs Thursdays at 10 p.m. EDT on ABC.