An elderly man is ripped from his bed in the dead of night. Blindfolded, the last thing he feels is the blade slitting his throat. A taxi driver, made to kneel at the side of the road, trembles as a gun is put to his head and the trigger pulled. In one execution, the bodies of five men have bullets in their backs.
The footage, posted online as Isis propaganda videos, reveals the cruel psychopathy of men whose humanity has been lost to the extremist cause.
Less than a week ago the jihadists seized control of Iraq's second city of Mosul. As many as 500,000 Iraqis escaped. But now, tens of thousands have decided to return.
In the Sunni-dominated city, the removal of the Iraqi Army by Isis has been interpreted as a local victory - a means of empowering Mosul residents against Nouri al-Maliki, the Prime Minister, and his Shia-dominated Government which, they feel, has kept their people oppressed.
"For seven years we lived in a prison. The people who have come now [Isis], are better than the Maliki army," Maher, 36, said.