You had an ex-husband who accidentally got you pregnant.

You thought it was better to hide it from him because you didn't want to have joint custody or for him to be aware of what was happening in your life.

Now, 5 years later, you had dropped your son off at school and by chance found your ex-husband with his new wife and son at the same school as your son.

Without meaning to, you exchanged glances... and he gets closer... closer and closer...