Mona and Alison are forced to work together to unmask a killer, but what is the reason for all of it?

Did we ever find out who A actually was? How many A's were there exactly? Was anything in this show ever actually explained? There was so much back and forth throughout the run of this show that it's nearly impossible to even come up with a coherent synopsis for what the show was about. However, one character whose antagonistic nature seemed to be pretty stable, even when she was helping out one of the main characters, was the character of Mona Vanderwall. The geek girl, turned sexy mean girl was one of the most fun characters to follow throughout the run of the show. In flashbacks, she is often shown in childish attire, glasses and pigtails, representing her innocence at that point in time. In the main time line however, with her blood red lips, cat eyes and darker color palette, her questionable morality is clear. Ladies and gentleman, never trust a girl with blood red lips.

At the beginning of the show, Emily dated men and identified heavily heterosexually. It wasn't until Maya was confidently gay that Emily realized maybe she wasn't as straight as previously assumed. She didn't seem to have any major problems in the process, and she is a nice representation of a femme lesbian. Offering other femme lesbians a place to identify and realize that to be gay you don't have to look like the stereotype.

Sasha Pieterse as Alison and Janel Parrish as Mona.

Eli Brown stars as Dylan on Pretty Little Liars: The Perfectionists.

Janel Parrish is back as the scheming Mona Vanderwaal.

Sasha Pieterse returns as Alison DiLaurentis on the Pretty Little Liars spinoff.

Pretty Little Liars: The Perfectionists stars Hayley Erin as TBD, Kelly Rutherford as Claire, Graeme Thomas King as Jeremy, Janel Parrish as Mona, Sasha Pieterse as Alison, Sofia Carson as Ava, Eli Brown as Dylan, and Sydney Park as Caitlin

Eli Brown as Dylan, Sydney Park as Caitlin, and Sofia Carson as Ava.

Sasha Pieterse as Alison and Janel Parrish as Mona. Yes, they look fierce!

Sofia Carson stars as Ava on Pretty Little Liars: The Perfectionists.

Sydney Park plays Caitlin on Pretty Little Liars: The Perfectionists.