Who calls up Gerrard? How does Gerrard use this to get rid of the Intruder?
One of Gerrard’s fellow theatre-persons calls up to enquire about the props. Gerrard knows about the call in advance. So, he uses it to prove to the Intruder that Gerrard’s man has warned him about the police. The Intruder believes Gerrard and follows him which enables Gerrard to overpower him.