Complex sentence: The film ends with Muldoon catching up with them at their hotel as they are about to pack before attempting to escape to the air-port and skin them alive as promised, leaving them, except their heads, in bare bones.
Split into simpler sentences: The film ends with Muldoon catching up with them at their hotel as they are about to pack before attempting to escape to the air-port. Just like he promised, he skin them alive, leaving them, except their heads, in bare bones.