TV Guide BBC Scotland Tuesday

Documentary featuring the men and women who work at Aberdeen Harbour, beginning with barmaid Val Morrison, who helps with preparations for a Halloween party in the pub. The focus then switches to Norman Campbell and Alan Cowper, part of the team that ensures every boat is safely docked, while aboard support vessel Bibby Sapphire, saturation diver Terry Dearlove works on the installation of a pipeline linking an underground well to an oil rig

Multiple ferry breakdowns threaten to maroon islanders over Easter and Caledonian MacBrayne CEO Robbie Drummond and his disruption management team hold a crisis meeting to discuss the dire state of the network. In the Outer Hebrides, island-hopping wedding celebrant Lorna Clarke is travelling from Harris to North Uist to perform a ceremony for bride Emma and groom Niall Sean

Part one of two. An exploration of one of Scotland's most notorious unsolved cases, with the culprit of the murders of three women in Glasgow from 1968 to '69 still unknown. Retired Detective Chief Superintendent Joe Jackson, then a young detective constable, recalls attending at the scene of a young woman's body being found in the south side of Glasgow

Part two of two. The discovery of a third victim in 1969 leaves Glasgow detectives convinced they are dealing with a serial killer. Journalist Magnus Linklater recalls covering the case and the interview he conducted with the third victim's sister, whose testimony would provide the basis for the biggest manhunt the country had ever seen. The programme also examines how the new technology of photofit images was employed in this case