Lennie James Stars in ITV Thriller 'Nightswimming'

• Lennie James stars in the ITV thriller 'Nightswimming'.
• James plays Matthew, accused of murdering his family.
• The story alternates between past and present.
• Produced by Harry and Jack Williams, creators of 'Fleabag' and 'The Tourist'.
• Matthew returns to Portugal, where he was convicted.