View 2 videos at the same time.

Hi

1st time post, pretty new to Premier Pro.

I have 2 clips which were recorded on a fixed position camera. One clip contains a person walking off camera, and the second contains the same person walking on.

I'd like to create a transition which shows the second person entering the frame just as the first person is leaving, so there is a bit of an overlap.

Essentially, I want to see both clips at the same time (they both have the same background in a fixed position).

I've tried using opacity, but the person then goes partially see through, I need them both to look 'real'. So one will need to pass 'in front of/behind' the other.

Possible?

Thanks

Adam