In the Dexter episode “Lost Boys” in one of the scenes where Trinity is in the bunker with the kidnapped boy, a song plays. It’s not the one from the record he plays (Frankie Avalon)- this is a female voice, although it also sounds old, maybe from the 50s. Lyrics I could make out are something like this:
don’t you know i love you baby
can’t you see my heart is true
whisper in my ear tell me all …i’m dying to hear
darling i’m so in love with you
My google fu has failed me!