Gothika poster shows us that the woman has sort of lost her mind because in the photo on the poster, she looks very confused and sort of shocked. She also looks trapped inside somewhere with no way out which could make her feel  lonely. We can also see a massive scar on her arm which says NOT ALONE which is a bit ironic because when people go  mad, they tend to never have any friends or talk to anyone. She also becomes more paranoid because of the fact that nobody believes that the girl she is seeing is still alive. The poster shows that she might be outside and is trying to get in but nobody is there to help her or keep her safe from the paranoia.