This act begins 7 years later with Mickey and Edward in secondary school. After being rude to his teacher, Mickey gets suspended and at the same time so does Edward because he didn't want to remove the locket.
Mickey, Edward and Linda quickly meet up again, though this time Mrs Johnstone is happy for them to be friends.
Mickey leaves school to work at a factory and Edward leaves to go to university. Mickey and Linda then get married after she finds out that she is pregnant.
Mickey loses his job at the factory and so helps Sammy in a robbery where they both end up in prison. Once Mickey is released and finds a job, Linda and Edward start to have a light romance; this is then revealed to Mickey later in the play by Mrs Lyons.
Mickey gets Sammy's gun and confronts Edward at the counsil chambers. After Mrs Johnstone tells them that they are twins, in anger, Mickey points the gun at Edward and shouts, "I could have been him" and fires.
Mickey is then shot by policemen at the scene. The act ends with the two twins' deaths on stage and the narrator asking whether superstition is to blame or it was just fate.