Mark Duffy, aged 43, went missing from his home in Navan, County Meath, Ireland on October 3rd, 2022. That morning, he left his home to collect a social welfare payment at a local post office in the Johnstown Shopping Centre. He was picked up on CCTV footage shortly before 11 am at the post office and later that day at a Centra supermarket on the Commons Road just before 3 pm and appeared to be crossing a road and heading back in the direction of Parnell Park where he lived. Mark never arrived back home that day. He was due to start a new job as a construction site foreman. He was formally reported missing without contact with his family on the 13th of October, 2022. What really happened Mark Duffy that October day?