There are some crimes in Ireland's history that are just seared into our memory, and the Shane Clancy case in Bray is one we will certainly never forget. One night at 3.00 am back in 2009, Clancy drove into Dublin to buy a set of knives. On his return, he headed to the house of his ex Jennifer's new boyfriend Seb Creane and killed him - along with stabbing Jennifer and attacking Seb's brother, Dylan. He then killed himself. This documentary will speak to the survivors of the horrendous act, including Jennifer and Dylan, as well as Shane's mother Leonie, who will tell the story of exactly what happened on that fateful day.