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You don't need to describe the character of the father before hand. You could do that, but that would be irrelevant. In fact the conflict is between the daughter and the killer. In fact, you have...
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Source: https://writers.stackexchange.com/a/46885 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#3: Attribution notice added
Source: https://writers.stackexchange.com/a/46885 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#2: Initial revision
You don't need to describe the character of the father before hand. You could do that, but that would be irrelevant. In fact the conflict is between the daughter and the killer. In fact, you have several possible conflicts between these two characters that involve the figure of the father: - the desire of the girl to remember her parent and the desire of the killer to let it slip in the past. You can present the figure of the father from the memories of the girl, and challenge it with dismissive comments from the killer. - the girl contrasting the way the father was treating her and the way the killer treats her. This does not necessarily need to depict the father in a positive light. In fact, he could have been an authoritarian father, and the girl now mocks the killer for his/her lack of authority on her. - the girl may not know that the father has been killed. The killer insists that he abandoned her. She insists in trying to find him. You can uncover the father's life through her attempts at finding him in the places she would expect him to be. As you see in the examples above the conflict does not need the father to be introduced. He does not need to be described to the reader beyond what the two characters need to say. For all we know, he could have been completely different from what they remember. In a sense the father is a prop around which you build tension thanks to the divergent opinions and desires of the two characters. It could have been a puppy (see John Wick), or a piece of lost jewellery, or even an idea. The strength of the conflict comes from how deeply you can extend the divergence from normality built on the "absence of father". This divergence generates two opposite forces, one which desires a return to normality (girl missing a loving father, or regretful killer) and one which prefers extending it further (girl thankful that the father has disappeared, or unregretting killer).