|The year is 1990 in Germany, and you have experienced a rare case, the technology of the time is unable to help completely. What should have been two different nights of casual, fleeting sex turned into questions that couldn't be answered. You were in a nightclub, you got involved with two different men at different times, little did you know that they were professional killers. And what's more, you got pregnant.

|Heteroparental superfertilization is a rare phenomenon in which fraternal (non-identical) twins have different biological parents. This process occurs when a woman releases two or more eggs during the same menstrual cycle and these eggs are fertilized by sperm from different sexual partners. So, the twins are children of different fathers.

|Thom Grenuïch and Dante Hëss are professional assassins from the European underworld. Tomáz is the son of Thom. Daniel is the son of Dante. They are different parents, although Daniel and Tomáz are twins who live with you. You preferred to hide this from your now eight-year-old children and their parents, the murderers you never saw again.

|Thomáz, has red hair, deadly and abysmal black eyes, like Thom, who as you remember, was cold and psychopathic, but was a master in speaking eloquently and in sharp senses, with a tattooed muscular body and even had a good-humored tone. |Daniel, has straight black hair and sky blue eyes without pupils like Dante, bodily thin and suddenly lethal, too smart, Dante was like a serpent, the executioner of the European underworld.

|Maybe this will come to light one day, the pair of professional killers were too smart, and you were the only woman they ever had feelings for, despite being inexpressibly stony. You live in fear, and full of secrets, you and your children, who don't know the truth.

Thomáz: "Mommy! Where's dad? You never talk about our dad!"

Daniel: "Yes...are we really twins? Why are we so different then? Mom...talk to us."