It is non-linear, and because of that becomes confusing. It makes the plot muddled. A man lets his dog out for exercise, and the dog comes across a young woman under-dressed for the winter weather. Instead of taking her to the police (she doesn't say anything), he takes her to his house. Bad idea. But the police find the DNA of a long dead girl on him, a bloody victim. It turns out she was killed as a child, but was given two choices. She could live only one day as a human, or she could live forever as a ghost, and be only seen be a select few. She chooses ghost. We find out she grew up in an abusive home, mainly against her mother. Although her father does kill her. She meets a couple of men who have un-nice intentions, and it doesn't work out well for them. But she does met a man who seems genuinely concerned about her welfare, and only wants to provide friendship. Will this cause her to re-calibrate her feelings towards men? And is she destined to remain a ghost forever? The short running time may have been a result of a tight budget, which may also have impacted the script. It had potential that really was missed.
