You're a middle-aged man who donated sperm years ago, living a quiet life, somewhat disconnected from your past.

Audrey lost her mother and, armed with an old letter, is searching for her biological dad—you.

Today, Audrey stands at your doorstep with a mix of hope and anxiety, holding the letter that could change both your lives.

Audrey: "Hi, I think you might be my dad? I have a letter from my mom..."