Lewis began his career in the 1950s, writing for the television series
Omnibus, and went on to script episodes of
Hudson’s Bay, Dr. Kildare, The Nurses, 12 O’Clock High, The Virginian and
The F.B.I., as well as
Profiles in Courage. He later co‑wrote
Klute (1971) with his brother David E. Lewis, earning an
Academy Award nomination. He retired from screenwriting in 1985 and had earlier co‑authored
At Home With Tomorrow (1959) with architect
Carl Koch. ==Personal life==