When authorities brought Ramsiyar Sabanayagam to the Mantra Bell City Preston hotel in suburban Melbourne in November 2019, he assumed he would be there for only a few weeks.

Instead, Sabanayagam, a refugee from Sri Lanka, spent the next 14 months locked inside his room for all but a brief period each day, unsure when his ordeal would end.

He and the other refugees detained in the hotel were ordered to keep their windows shut until, after protesting, they were allowed to crack them open, but no more than 4 inches. Guards checked on them day and night, sometimes shining flashlights into their faces while they slept. The men could see guests coming and going, and they knew that people were gathering with friends and loved ones in the dining hall below, but they had no hope of joining them.