Bull is back from hiatus and this week, we'll see the brilliant psychologist Jason Bull (Michael Weatherly) take on a Pretty Little Liars alum.

Actress Roma Maffia drops by for a role that will put her on the opposite side of the law. In a departure from Lt. Linda Tanner, her character on Freeform's mystery drama, Maffia steps into the skin of Hazel Diaz, a drug boss who is believed to have been faking schizophrenia for years in order to evade the law.

"I'm excited that I got to play in a different field," Maffia tells TV Guide of the thrilling character. "This character's so different that I'm curious as to how people will view [her]."

When she's accused of murder, Diaz finds herself face-to-face with Bull, who doesn't buy her act for one second. However, certain details from her past work in her favor and it's up to the determined trial analyst and his team to catch her in a lie to ensure that she doesn't get away with another heinous crime.

The Perfectionists Adds Descendants Alum Sofia Carson

Watch it all go down when Bull returns Tuesday, Feb. 27 at 9/8c on CBS.

(Full disclosure: TV Guide is owned by CBS.)

Roma Maffia, BullRoma Maffia, Bull