Matt Katz has been searching for his father since he was a little kid. But it wasn't until his 40s that he realized he was on the wrong journey altogether.

As a kid, my biological father was in and out of my life. Then, he disappeared entirely. When I finally found him again, it left me with even more questions.

A DNA test turns up some shocking details about my identity. It means that everything I thought was true about my father could be wrong.

When I track down the doctor who treated my mother in the 1970s, I'm left with the uneasy sense that a minor medical procedure done four decades earlier has life-altering ramifications.

My search for my father takes me overseas. And I speak with someone grappling with their own emotional fallout around family revelations.

I uncover the scale of the lies and deceit that characterized infertility care for decades. Maybe I’ve been searching in the wrong place all along.

Even as I'm warned against digging up ghosts, I double down on my pursuit to uncover the identity of my real biological father by bringing in a professional.

It’s time to make the phone call.