A girl is found dead, and the trail leads to her ex husband who says she left him because he reminded her too much of their dead son. They find out that she'd just lost her job at a high-end hotel / apartment place because of showing too much interest in a Doctor's kid. As they investigate, they find out that her baby and the Doctor's baby and the baby of someone else that she'd been reported for showing too much interest in two years before had all been born in the same hospital on the same day, and all were boys. The doctor switched his own sick baby for this poor immigrant lady's healthy one, and when the sick baby she thought was her's died, she made it her mission to find out what happened-- and it led to her death. It's sad because it's a horrible thing to go through.
Meanwhile, the Heat Wave book launch means the deal with the police is done, and Castle and Beckett keep butting heads over it-- he's got an offer to relaunch 'a certain British spy' and wants to take it, but doesn't want to leave Beckett; she thinks he wants her to tell him to do it, and has this image of not wanting to put up with him anymore, so she keeps insisting that she'll be fine and even relieved to see him go. This hurts his feelings because he likes working with her and thinks he's been more use than that, and hurt feelings make him snarky. Snarkiness makes her angry, and so she's insisting more firmly that he's just in the way. And so on and so forth until the case is solved and they have to part ways. And they're very civil about it. They both have things to say, you can see it in the awkward way they both keep almost saying things and then not doing so, but they shake on it and prepare to go their separate ways. It's sad because they like each other (though it's probably not at a capital-L level yet, though his agent saw how he was looking at her and told him to get it over with already), and they're both misinterpreting the situation, but neither will just admit that they want to stay together.
So, sad all around.
But in the end of the case, they get the kid's read dad (the dead woman's ex husband) and his supposed-mom (the doctor's wife, now effectively widowed by his life imprisonment for murder) together so he can meet his actual son and tell her about her actual son. And my head immediately gave them a shared-trauma-leads-to-unlikely-love happily ever after. And Becett and Castle get simultaneous calls from their bosses informing them that Nikki Heat is through the roof and they want three more books, and so they're still together whether they want to or not-- which causes anger and consternation that's really there to cover up relief.
Yay! They're still a team! It looked almost like they were actually going to split them up and make me suffer through episodes where they're doing separate things and have to work their way back together after only five episodes.
I really liked this ep. I love how Castle and Beckett are gravitating toward each other mostly against their own better judgement. And I like how their snarking covers the fact that they actually do respect each other and are starting to blur into something like a real friendship with tinges of the sexual tension that was always there. I think they can go far. People like tension in their TV shows, sure, but I don't think it has to be chaste forever-- remember Remington Steele? This could totally go that way: no actual consummation, but the occasional making out, the embroilment of emotions, and the constant reminder that she's in a dangerous line of work and he's not quite trustworthy. Maybe that's why I like this show so much-- it's like RS, and there hasn't been something like that since it went off the air. Most things that try to walk that line wind up in Moonlighting land where there's too much snark, too much fighting, and not enough love and deepening respect. I think this show is good-hearted enough to walk the line and avoid Moonlighting hell.