Emy Valentino

Latin American revolutionaries invade a military base on Puerto Rico, and steal a nuclear bomb, killing a pregnant woman in the process. Captain Beck (Fred Williamson) is assigned to track the revolutionaries to their home turf, and recover the weapon. The late woman's husband, eager for revenge, accompanies Beck to an area near the Nicaraguan border, where they encounter hostile revolutionary forces. (imdb)

Young women are being murdered by a masked killer who copies the look and killing style of a comic book character called Doctor Dark. The press turn on the comic publishers, accusing them of inciting the attacks, and the young artist (Giovanna), who draws the illustrations, starts to receive mysterious phone calls from a man claiming to be the murderer. As the killer closes in on Giovanna, police try and solve the mystery before it's too late. (imdb)