A disgruntled phone company employee develops a device whereby those answering a phone can be murdered, and it's up to Nat Bridger to stop the killer.A disgruntled phone company employee develops a device whereby those answering a phone can be murdered, and it's up to Nat Bridger to stop the killer.A disgruntled phone company employee develops a device whereby those answering a phone can be murdered, and it's up to Nat Bridger to stop the killer.