Manhunt 2 question

Is manhunt 2 a free roam or sandbox game? I cannot seem to find this information anywhere.

Also if it is a sandbox or free roam game, how big is the map and what is there to do when the game is complete.

No its linear

Thank you, in your opinion is the game worth buying? How long does it take to complete. as I am looking for a new game on my PSP.

I had been told it was a bit like the warriors where it was partly free roam, around an asylum. But I wanted to know before I bought it.