Taggart (1983)

Season 24: Episode 9

Zbigniew Lisowski, a Polish migrant worker, is found shot at the building site where he worked as a security guard. Hours later, the body of hotel receptionist Kate Booth is discovered - with strikingly similar gunshot wounds. When investigations reveal that Kate - aka Kasia - was also Polish, the team have to consider whether a racially-motivated killer is at large.