Do Ты have to have an Evil character/real Villain?

In the story I'm Письмо no one is really Evil. All the characters do some bad things (kidnapping, attempted murder and so on) but no one is really the antagonist. They all have good reasons for what their doing. Some characters think one of them is evil but he thinks their the evil ones. I have main characters on various sides, so everyone gets portrayed as both a good guy and a bad guy. i've never read anything like that so I'm not sure if it's okay. I'm a little еще than half way through and there aren't any problems with no villain affecting the plot. I'm just not sure if it's okay. Their is conflict just no "Bad guy". So is that okay или can Ты not have a story like that?