Sam dives into a ‘sea of sharks’, crooks profiting from a multi-billion pound industry. In an Edinburgh-set gothic thriller, Emily glimpses a school friend who died 20 years ago.

Local BBC Radio joins BBC Radio 5 Live through the night on a weekend.

Take the radio with you. Listen to your favourite stations wherever you are We acknowledge Aboriginal and Torres Strait Islander peoples as the First Australians and Traditional Custodians of the ...