Warning: This article contains descriptions of torture
The prisoners fell silent when they heard the shouting outside their cell door.
A man's voice called: "Is there anyone in there?" But they were too afraid to answer.
Over years, they had learnt that the door opening meant beatings, rapes and other punishments. But on this day, it meant freedom.
At the shout of "Allahu Akbar", the men inside the cell peered through a small opening in the centre of the heavy metal door.
They saw rebels in the prison's corridor instead of guards.
"We said 'We are here. Free us,'" one of the inmates, 30-year-old Qasem Sobhi Al-Qabalani, recalls.
As the door was shot open, Qasem says he "ran out with bare feet".
Like other inmates, he kept running and didn't look back.
"When they came to start liberating us and shouting 'all go out, all go out', I ran out of the prison but I was so terrified to look behind me because I thought they'd put me back," says 31-year-old Adnan Ahmed Ghnem.
They did not yet know that Syria's President Bashar al-Assad had fled the country and that his government had fallen. But the news soon reached them.
"It was the best day of my life. An unexplainable feeling. Like someone who had just escaped death," Adnan remembers.