Rote Lippen, Sadisterotica (1969)

The two bisexual women, Diana and Regina, run a detective agency called “Red Lips.” Their latest assignment takes them to a Mr. Radek, who hires the two beauties to search for his missing lover, Lida. Lida Regnier is not the first young woman to have disappeared recently. A hot lead points to the mysterious painter Klaus Tiller, who runs his own studio. The artist is known for his “delicate” works, which often depict scantily clad women at the moment of their death. Diana and Regina notice that the women portrayed by the “Artist of Death,” as he is also known, bear a disturbing resemblance to the missing women. So far, nobody knows the terrible secret behind these paintings: Tiller has his models abducted by a shaggy, bearded creature named Morpho, his utterly loyal factotum, and dragged to his studio (apparently including the missing Lida). There, at his master’s behest, Morpho strangles the kidnapped women while Tiller photographs them in their death throes, so that he can later immortalize that moment on canvas. When Diana and Regina uncover this bloody scheme, they soon find themselves in mortal danger …