Headcase

“The truth was, the Mulvaneys weren’t killers — they were karma.”

Headcase follows Asa, one half of the mirror twins, who’s furious about being separated from Avi for Thomas’ latest “experiment.” He’s desperate to vent that rage — and then enters Zane, a crime blogger obsessed with connecting the dots and uncovering the strange patterns surrounding the Mulvaneys. Zane knows something is up with them, and he’s determined to expose the truth. He sneaks into the same awards party Asa is attending… and that’s where the chaos begins.

I adored the entire concept 😍😍 The way Zane originally approached Asa for his secret agenda — wanting to destroy the Mulvaneys — only to fall for him instead? Absolute perfection. It’s exactly the kind of messy, tension-filled romance I live for. And Asa kidnapping Zane, using him as leverage so he wouldn’t go public about the Mulvaneys? Scandalous, yes, but the perfect setup for their relationship 😅😅

“I know people who’d give anything to have what we have. I’ve killed for you. I would die for you. I will put your wants and needs above mine forever because I want you to be happy. Is that love? Because when you’re not around, I feel like there’s a splinter under my ribcage, and it only goes away when I see your face.”

Asa and Zane balance each other so well 👍👍 Asa’s possessive, animalistic side completes beautifully with Zane’s need to be wanted, protected, and dominated. I really enjoyed watching their relationship develop. Even though they slept together early on, it took time for them to emotionally connect. Zane wasn’t immediately drawn to Asa — meanwhile, Asa was obsessed from the start. It took time, tension, and vulnerability before they truly saw each other, and when they did, their romance became surprisingly tender and endearing 🥰🥰

Asa is a full-blown psychopath — bloodthirsty, violent, and unhinged in all the best ways 😝😝 He thrives on pain, both giving and receiving, and would kill anyone who hurts the people he loves. His way of showing affection is through violence, and somehow, it’s poetic in its own twisted way 😉😉 The Mulvaneys have all been trained to blend in and mimic humanity, but Asa doesn’t bother pretending. He doesn’t care to appear normal — and I love him for that.

“His heart did that funny thing it did whenever Asa did something thoughtful. Which was surprisingly often for a psychopath who liked hunting his bedmates instead of seducing them. Had Thomas taught them to be this attentive? Was it all part of the… curriculum? Maybe every man should be forced to take Thomas Mulvaney’s How to Be a Human class. He should send his future father-in-law a fruit basket.”

I really, really loved Zane — his weirdness, his love for true crime, his big heart, and even his insecurities. I don’t know how to explain it, but he gave me the same vibe and feelings I had for Noah. Maybe it’s because they’re both so kind and sweet, no matter what kind of trauma life threw at them. I just wanted to wrap them in a hug and protect from everything 🥺🥺 Thank God they now have Adam and Asa for that. His life wasn’t easy, and his mother was absolutely awful — I hated the way she treated him. Honestly, I was with Asa on this one. He really should have killed that woman 😡😡

Zane and Asa’s banter was phenomenal 😂😂 I live for sharp, playful dialogue, and theirs was top-tier. Zane was fiery and resistant at first, but by the end, he became more submissive — and it made sense. His defiance came from seeing Asa as the enemy. Once that illusion shattered, all that was left was love — and his natural submissiveness gave Asa free rein. It was a believable, organic shift 😊😊

The beginning of this book was incredibly strong — I was hooked from the very first page. But the last 40% lost me a little; it leaned heavily into the murder investigation, which just isn’t my thing 🥱🥱 Don’t get me wrong, I love the side stories in this series, but this one stopped feeling like a side story toward the end. I would’ve preferred spending more time watching Asa and Zane’s relationship deepen instead of focusing so much on the procedural side of the plot. That’s just a personal taste thing, though 🤷‍♀️🤷‍♀️

Finally, I do wish Avi had been more present. His absence felt strange, especially since he and Asa have always been inseparable. Still, the book was such a great experience overall. This series feels like comfort — I know exactly what I’m getting every time, and I love it for that. The author clearly has a formula, sure. Is it repetitive? Yes. Do I care? Not at all. On to the next book — I can’t wait for Avi and Felix’s story 🥳🥳