A. A park by a marina.

Q. Where is it supposed to be on the show?

A. Somewhere in Miami.

Q. When did we see it on the show?

A. Twice in Episode 5, of Season 5, "First Blood".

We first see Dexter helping to spread out a large, rainbow-colored blanket. He is with a group of mothers and their babies in a park, and he has brought his own baby son, Harrison, to play with the other kids.

When one of the children starts crying, Dexter notices a small scratch on its cheek, which reminds him of the cuts he makes during his killing rituals.

Clearly, Dexter is still worried about his son growing up to be like him, after witnessing his mother's death.

As the scratched infant points an accusing finger at Harrison, and the mothers frown, Dexter scoops up his son and beats a hasty retreat.

The second short scene, at the end of the episode, has Dexter back at the park.

As he walks past two women (with babies of their own) he hears one comment "Did you read about what happened to his mother?", to which the other woman replies "That boy will never be the same."

Dexter, carrying Harrison, passes them, and says "There's nothing wrong with my son."

As Dexter puts Harrison into his car seat, he apologizes for ever thinking the worst about him. Just then, the baby reaches up and scratches his father's face.

Q. What is it actually in real life?

A. A park by a marina.