SAW is a horror map made by motives of the popular movie series, in which people were helding by psychopath. The same thing happens to your character, who awakens in unknown place and must obey to the orders of the mysterious voice. Saw will provoke you and force to make choices, even though they may be unpleasant. To complete the map and stay alive, read the chat carefully to see what is required from you.
How to install maps:
Download .mcworld file below
Open file using any file manager to import it into Minecraft PE
Open Minecraft Pocket Edition and look for the map among your worlds