Everything you say

Joanna returns home after meeting with her friend and hears behind her back the sound that every woman is afraid of. She is sure that it was he - a persistent man who was pestering her in a bar. The steps are approaching, she turns and pushes her pursuer with all her might.
Now Joanna should do what she hates the most - to make a decision.
To stay. Call an ambulance, save a stranger. And to convince the police, husband, family and her friends that she is innocent, that it was an accident. But can this be proved?
Run. Make sure that there are no witnesses, and leave. And the next day, find out that the stranger died. Now Joanna needs to destroy all the evidence that can connect her with this death. And lie to everyone - husband, family, friends. But can this be taken out?