TV series.
The Sinner
Jessica Biel stars as a wife and mother (Cora).
She, her husband, and daughter are at the beach.
Another couple is close to them.
Cora gets up and walks to them, grabs a knife, and stabs the man 5 times.
Then she turns to the woman with him and says, "
Now you are safe".
She is arrested.
She knows she did it (ie. it wasn't due to some blackout of her), but cannot explain why she did it, and claims she did not even know the man.
She appears disoriented, confused, and frightened of what she did.
A detective, played by Bill Pulman (Harry), is determined to get to the bottom of her psyche as to why she did it.
This next part may contain a spoiler, although there are only 3 episodes so far, so it's not much of a spoiler.
Read on if you wish.
Harry continues to question her, and is surprised that she has no interest in defending herself in court, and has no interest in the cops trying to figure out WHY she did it.
But Harry is determined to find out WHY, because he smells something fishy about the whole matter, and want Cora to plead temporary insanity.
When Harry (the detective) finds out that she did know the man and confronts her with it, her continence changes from the frail confused state to an "in control" person.
She looks up at Harry with a determined glare and says, "
I knew him, and I wanted him dead".
He plays a recording of the event when she stabbed the man.
There is a song playing on the portable radio beside the couple (of the man she stabbed).
Cora starts getting fidgety, and then suddenly leaps upon Harry to attack him with her fists in the interrogation room.
On reviewing that instant from the video recording of her interrogation with Harry, Harry notices that she punches him with her fist 5 times in exactly the same body areas and in the exact sequence that she stabbed the man.
He thinks the song may have something to do with her reactions, so he keeps digging into her past.
It's one of those shows that makes you wonder ----- What's really going on here?
It's not a "who done it?" because you already know who did it.
You just don't know why.