First Born (2007)
Steven: [as he comes into the bedroom] Morning sweetheart.
Laura: Good morning.
Steven: Where's Jessica?
Laura: [a beat] Who's Jessica?
Steven: [he laughs, thinking she is joking] Where's the baby?
Laura: [another beat]
[she looks confused]
Laura: What baby?
Steven: [realizes the truth and bolts from the room] Jessica? Jessica? JESSICA?
[Laura only sits on the bed with a blank look on her face]