Allison Sera is a character in DEXTER.
She is a single woman who was unknowingly targeted to die by a Murderer named Roger Hicks. She lived under the radar with no dog and kept her neighbors at a distance. She went to Roger in hopes of buying a new car. When Roger met her he ran a background check on her and found everything he needed to in preparation to kill her. Roger was going to kill her but she was saved from this fate when Dexter Morgan amused him in the dealership parking lot where Dexter garroted him from behind.