The filmmakers clearly attempted to portray Ted Bundy in the way Liz and the rest of the world saw him– in the way he fooled everyone.
This exploration ends right as we begin to get close to any hint of character growth.
Unfortunately, leaving the condemnation of his character to an undertone that we’re meant to guess at doesn’t effectively portray the twisted juxtaposition of a charming, but clearly homicidal man.
During its first half, the film seems particularly interested in exploring the idea that Ted was actually innocent all along — that he was framed for his crimes.