Marshall — one episode of Espionage (1964), and episodes of The Fugitive (1964–65). Other writing credits during the 1950s and 1960s included the fantasy-suspense anthologies Kraft Television Theatre (1958) and Kraft Suspense Theatre (1965), the espionage TV series Blue Light (1966) starring Robert Goulet and Coronet Blue (1967) starring Frank Converse, and the science-fiction TV series, The Invaders (1967–1968). In 1966, he wrote the screenplay to the Western film Return of the Seven (also known as Return of the Magnificent Seven), a sequel to the 1960 film The Magnificent Seven, which had the return of Yul Brynner as gunslinger Chris Adams. Four episodes he wrote for Blue Light were edited together to create the theatrical film I Deal in Danger, released in December 1966. He also created the Western TV series Branded (1965–1966) and was the co-creator with Walter Grauman of Blue Light. 1970s Although Cohen continued to write TV and film scripts during the 1970s – such as Columbo – he further turned his hand to directing. His directorial debut was the 1972 comedy film Bone (aka Beverly Hills Nightmare) starring Yaphet Kotto. Cohen directed Dial Rat for Terror (1973) and Housewife (1973) before creating the It's Alive series in 1974. He wrote, produced and directed the horror film It's Alive, about a mutant monster baby that embarks on a killing spree. The film – an initial commercial failure – was re-released with a new and sharper advertisement campaign; it went on to become a moderate success, earning over $7 million for Warner Bros. and spawning two sequels, It Lives Again (1978) and It's Alive III: Island of the Alive (1987). Cohen followed-up It's Alive with the science-fiction serial killer film God Told Me To (1976), in which a New York detective investigates a spate of killings by apparently random people who say that God told them to commit the crimes. He concentrated his work predominantly within the horror genre throughout the 1970s and 1980s, often incorporating elements of crime, police procedural, and science fiction with scathing social commentary. Cohen's It's Alive tells of a couple, Frank and Lenore Davis, who give birth to a mutated baby. The doctors and nurses at the hospital attempt to end the life of the deformed child, but it instead kills them and escapes. A police manhunt ensues as the fleeing mutation leaves dead bodies in its wake. Frank sees the child just