“Peru Two” drugs mule Michaella McCollum has told how she sobbed and felt like she was "crazy" in her South American prison cell infested by cockroaches.
Melissa Reid, from Lenzie, East Dunbartonshire, and McCollum from Dungannon in Northern Ireland, made headlines all over the world when they were sent to jail after smuggling cocaine into the country.
Speaking in the new BBC documentary, "High: Confessions Of An Ibiza Drug Mule", McCollum recalled the horrors of her three-year stint in the Peruvian jail.
She said her cockroach-infested bunk made her paranoid at the Virgin de Fatima prison were she was held as she awaited trial.
"They would hide during the day, and when I would get into bed you would hear them crawling up," she said.
"I used to just cover myself with a sheet and hope they didn't crawl on me. I was really paranoid because I felt like my skin was crawling all the time.
"I went to see the prison doctor and he basically said I was crazy because I felt like there were things on me but there wasn't. Basically, I was really losing it."
The pair were caught trying to take 11kg of cocaine worth around £1.5million to Spain in 2013, having been employed by a drug gang.
They were banged up abroad for six years and eight months but served less than half of their sentence before a judge deported them in 2016.
McCollum has horrific memories of her time in prison including two inmates fighting, with one holding a long needle.
"She just leaped across the table and started attacking this other girl, her blood and hair were everywhere," she recalled.
"After the first few horrendous months there I did slowly start to drop my guard a bit... I kind of figured if they wanted me dead it would have happened by now."
There were some positives for her as well as she learnt the Spanish language working in a basic beauty salon at the prison.
"I learned the prison had its very own beauty salon, more like a few chairs and mirrors and a concrete room, but for me it was heaven," she said.
"I got a job and I would do different hair treatments, colouring and cutting, blow-dries, waxing, nails, massage.
"I had no real qualifications, I was winging it but I was good at it. I had a lot of clients.@
After three years inside, the Peru Two were released and after returning home to Northern Ireland, McCollum is now a mum of twin boys and is studying for a degree.
"When you’re young you don’t know it all," she said.
"I made a dreadful mistake and I regret it, but what prison taught me made me who I am today and that’s a better person than I would have been otherwise."
Following her return to Scotland, Reid confessed that she had been on a “downward spiral” of ecstasy, cocaine and ketamine in Spain.
The Scot wanted to be in on the smuggling plot for a £4,000 payment so she could gloat about it afterwards.
She said: “I made a conscious decision to do it and no one forced me. I did an awful thing and I’ve paid the price.”
The year after her release, the Sun reported Melissa had started working with Citizens Advice in an effort to transform her life.
Melissa has shied away from the limelight, but Michaella has appeared on television numerous times and released a book.
