What is Walter Neff's job in Double Indemnity?

Walter Neff's job in Double Indemnity is insurance salesman.

Played by Fred MacMurray, Neff works for Pacific All Risk Insurance in Los Angeles. His professional knowledge of policies, claims, accident investigations, and loopholes enables the central crime: he helps Phyllis Dietrichson arrange her husband's murder so it resembles an accident.

Neff is not an investigator, police officer, or reporter. He is a field salesman who visits clients, explains coverage, and writes policies. That role brings him into contact with Phyllis when he calls at the Dietrichson home about automobile insurance.

The film, released in 1944, was directed by Billy Wilder and adapted from James M. Cain's novel. Its title refers to a policy clause that doubles the payout for an unusually fatal accident, the insurance detail Neff attempts to exploit.