It's an interesting story of twin doctors played by Jeremy Irons. They do some impressive technical things to have him play 2 characters in the same scene. Everyone's performance was convincing as well. I think emotionally it fell a little flat for me. When the story starts to get a bit more out there and intense, I started to feel bored. I never felt like they connected the emotional dots to really justify a descent into madness. It's an okay movie but Cronenberg has done better.