Publisher: Hemlock Press (ebook – 31 December 2025)

Series: Standalone/Book One

Length: 384 pages

Rating: 4.75 out of 5 stars

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Brillant new author M. K. Oliver presents one of the more entertaining novels of early 2026, with the wonderfully devious and captivating book, A Sociopath’s Guide to a Successful Marriage.

Plot Synopsis:

There’s a dead body in my living room.

I’ve not called the police because it was I who stabbed him. Seven times in all. The truth is, it’s surprisingly difficult to dispatch someone with a vegetable knife.

In case you’re wondering, the dead man is not my husband. I do resent our pitiful sex life and his woeful lack of ambition, but I wouldn’t murder him for it. Not yet, anyway.

Right now, I have far more pressing scheming to get my daughter into the perfect school; buying my dream home in Hampstead; and disposing of a corpse.

A woman’s work is never done. I’ve created the perfect life – and I’ll kill to keep it.

A Sociopath’s Guide to a Successful Marriage was a fantastic and very amusing crime fiction thriller that I honestly couldn’t get enough of.  The debut novel of M. K. Oliver, A Sociopath’s Guide to a Successful Marriage perfectly utilised it’s delightfully deceitful and pragmatic protagonist to tell an outstanding story.

Oliver pulls together an awesome and insane narrative for A Sociopath’s Guide to a Successful Marriage, which follows a particularly compelling protagonist in Lalla Rook, a busy wife, mother and relentless sociopath, with dreams of a bigger home and getting her daughter into the perfect private school.  However, Lalla’s plans threaten to come crashing down around her when she brutally murders an intruder who breaks into her home before her child’s birthday party.  What follows is a deeply entertaining romp of secrets, lies and ambition, as Lalla tries to balance achieving her goals for the future with disposing of the dead body currently hidden in the house.  Oliver builds a very amusing and fast-paced story around this, as Lalla soon encounters problems with inconvenient witnesses, prying police, and a whole second murder.  These problems brought on by the inopportune murder blend with the protagonist’s other issues, including with her disinterested husband not working hard enough to achieve the career goals Lalla set for him, her controlling mother-in-law trying to destroy her marriage, her daughter is starting to showcase similar sociopathic tendencies that are ruining her chances at an elite academic institution, and the constant issues of her social-climbing friends.

These fun elements come together into a very entertaining story, and it is a ton of fun to watch A Sociopath’s Guide to a Successful Marriage’s ruthlessly pragmatic protagonist deal with each of these issues in her own manipulative and intense way.  Of course, things continue to get further out of hand for Lalla as the narrative continues, with the mysterious dead man who started her recent misadventures having a connection to dark secrets from her past.  Worse, Lalla soon finds her carefully constructed life starting to come crashing down as her plans hit annoying snags as those closest to her are plotting against her.  I love how well Oliver showcases the protagonist losing control in the last third of this book, and it really ups the stakes of A Sociopath’s Guide to a Successful Marriage, especially as you have no idea just how far his protagonist is going to go to achieve her goals.  The final part of this book came together extremely well, as the protagonist’s various schemes and problems blend into a series of manipulations and deadly encounters, which results in a highly entertaining and chaotic conclusion.  The result was pretty damn perfect, as nearly every character gets exactly what they deserve thanks to some hilarious and insightful carnage.

I must admit I was quite surprised when I found out that A Sociopath’s Guide to a Successful Marriage was Oliver’s very first novel, as it was impressively well written.  Featuring a fast-paced narrative perfectly told from the first-person perspective of a particularly captivating protagonist, A Sociopath’s Guide to a Successful Marriage blends a thriller narrative, loaded with personal tales of deceit and murder, with some fantastic humour set around an amazing protagonist.  This protagonist, Lalla, allows for much of the book’s comedic charm, as you watch her casually manipulate those around her to get what she wants.  Oliver does such a good job of capturing Lalla’s sociopathic nature with his writing, and I loved his take on this amazing female character.  The way this protagonist goes after what she wants with no shame or regret, while being completely aware and uncaring of the impact she is having on those around her, is very refreshing and entertaining, and while you know she is evil, you can’t help rooting for her.

It helps that even though Lalla is a murderous and manipulative figure, she honestly isn’t the most selfish character in the book, and it proves quite fun to see the resourceful Lalla go up against the spoiled upper-class housewives, corrupt businessmen and other elites in her quest to get what she wants.  This great character-driven humour is further enhanced by some amusing examinations of ambition and avarice in various forms, especially as some characters get exactly what they are looking for in some very unlikely ways.  This all deeply enhances Oliver’s very impressive story, and I really enjoyed just how hilarious and thrilling this story could be in equal measures.

Overall, A Sociopath’s Guide to a Successful Marriage was an outrageous and hilarious debut thriller that I cannot recommend enough. M. K. Oliver did a remarkable job with this first book, and I loved the wildly entertaining scenario he created and the brilliant story he wrote around it.  Clever and funny in equal measure, A Sociopath’s Guide to a Successful Marriage was an incredible read and I cannot wait to see what amazing books Oliver writes in the future.

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