London, 1886:- Winnie Verloc has married the older shop-keeper Anton for security for her simple, disadvantaged young brother Stevie. She turns a blind eye to the meetings he holds with a cell of Russian anarchists including bomb-maker the Professor and Ossipin. In fact Verloc is a double agent under pressure from supercilious Russian diplomat Vladimir to discredit the group by detonating a bomb at the Greenwich Observatory so that they will be blamed. The shop is under surveyance by dogged Inspector Heat but Verloc is giving nothing away. He has a plan, however - which involves Stevie. Written by don @ minifie-1

Heat pursues the Professor in order to prevent him detonating a bomb on an omnibus, after which he is arrested. Meanwhile Verloc's plan goes horribly wrong as the bomb goes off too soon, killing Stevie with Verloc getting no support from Vladimir and the label found in Stevie's coat leading Heat to Verloc's shop. Ossipon flirts with Winnie, who rejects his advances, believing her husband's lie that Stevie is safe in the country until Heat explains her brother's fate to her. Written by don @ minifie-1

After Heat's visit Verloc is forced to tell Winnie the fate of Stevie and his role as a double agent. Shocked by his attempt at self-justification she stabs and kills him. Whilst the police investigate and expose Vladimir Winnie receives unexpected support from the charming Ossipon who suggests that they flee to France together, using Verloc's money. With nothing to lose Winnie is desirous of a new life, though it will depend not only on whether Heat lets Ossipon go but whether she can trust her new-found admirer. Written by don @ minifie-1