Studio Exec: "What's more badass than Liam Neeson's daughter being kidnapped and him having to beat people up until he finds her?" Writer: "What if someone kidnaps him and he has to beat people up until he finds himself!?" Studio Exec: "Do IT!"
Seriously why is hollywood wasting time making this movie, it was already made...
Also for your enjoyment:
I don't know who I am. I don't know what I want. If I'm looking for ransom, I can't tell if I have money. Do I have a very particular set of skills? Possibly skills I have acquired over a very long career? Skills that make me a nightmare for people like me? If I let me go now, that'll be the end of it. I will not look for me, I will not pursue me. But if I don't, I will look for me, I will find me, and I will kill me.