Full of suspense, legal drama and murder mysteries, "How To Get Away With Murder" has truly been a roller coaster ride for viewers and Annaliese's Keating 5. While episode 10 "Hello Raskolniknov" saw Rebecca's (Katie Findlay) murder charges finally getting dropped, it also introduced an unfriendly visitor, Sam's sister, Hanna, towards the end of the episode.

So does Hanna spell trouble? In an interview with TV.com, executive producer Pete Nowalk revealed spoilers in the upcoming episode. Nowalk confirmed that Hanna would create a lot of problems for Annalise and the Keating 5. She knows Annalise and Sam (Tom Verica) very well, especially since the pair have been together for 20 years. Hanna is a psychiatrist and knows what buttons to press in order to get to Annalise. Nowalk explains that Hanna can, "she can see beneath the surface" and unmask her seemingly formidable nature. Additionally, Hanna doesn't believe Annalise's story so that adds to the problem.

Fans can expect a glimpse into Sam and Annalise's relationship – how they met, what happened between Annalise and Hanna in the past and much more. In another interview with TVLine, Viola Davis, who superbly essays the role of Annalise Keating and Karla Souza, who plays Laurel, also confirm that Hanna is there to ruffle some feathers. Karla reveals that Hanna influences Bonnie (Liza Weil) and helps her in realizing the truth. Karla said, "(Hannah is) going to be a catalyst for Bonnie wanting to piece it together for herself." Hanna is just bad news for Annalise and her flock of murderous students.

In episode 11 fans will see Wes (Alfred Enoch), Connor (Jack Falahee), Laurel and Michaela (Aja Naomi King) come back from their winter break and deal with the guilt of killing Annalise's husband. Annalise takes on a mobster as a client while the Keating 5 are questioned by the police, reports Movie News Guide.

Will Keating 5 and Annalise really get away with murder? Is Sam really Lila's murderer? Tune in to ABC to see "How To Get Away With Murder" on Feb. 5, 2015 at 10 p.m.