Written by the legendary crime writer Dame Agatha Christie, Towards Zero provided Jeff with the opportunity to portray one her well known detectives in the role of Superintendent Battle. To convince in this role Jeff was required to give his character an air of a lack of imagination erring on the slightly stupid in order to lull his suspects into a sense of false security before revealing a stolid, common sense side to his nature and thus brilliant detective mind. The complex plot centres on Lady Tressillion, a humourless bedridden old woman who is murdered by one of several guests she has invited to her house for the summer. The play was performed at the Belgrade, Coventry in 1970.