Intrusion by Mary McCluskey is a thriller about two parents grieving the loss of their only son.

Kat and Scott are trying to come to terms with their loss when an old school friend of Kat’s appears, and quickly drags them into her devious plans.

Kat and Scott are grieving their son Chris, killed in a tragic accident when he was seventeen. They each have different ways of handling their grief; Kat wants to hide from everyone and can’t bring herself to interact with anyone other than her husband and sister unless absolutely necessary, while Scott overworks at his law practice until he’s absolutely exhausted. There’s already tension beginning to grow between them, and when Kat’s old school friend Sarah becomes Scott’s new client, it worsens.

Kat and Sarah haven’t spoken in twenty years, their friendship having ended badly. However, Sarah seems ready to leave the past in the past, and takes the grieving Kat under her wing, treating her to lunch and reminiscing old times. She’s now incredibly wealthy, and is turning her home into a replication of the mansion she lived in with her aunt as a girl.

However, Kat soon begins to notice that a lot of the companies that Sarah has successfully sued or ruined have connections to people who angered her in her childhood, and that she’s become a lot lonelier since she and Sarah became friends again.

Intrusion is a very detailed story, but unfortunately a lot of the details didn’t actually add anything to the story. Likewise, there were a lot of references to Chris’s friends, but again, they didn’t have that much to do with the plot, even though they were mentioned quite a lot.

Intrusion also shows two different ways of dealing with grief, and the effect grief can have on different people and those around them. It wasn’t as emotive as it had the potential to be however.

The ending was also very unexpected, and made up for the slow lack of excitement in the rest of the novel.

Intrusion is foreboding and tense, but also quite slow. It slowly pieces together the story of Sarah and Kat’s friendship from the past as well as depicting Kat and Scott’s struggles to come to terms with their loss.

It’s not a book to rush out and buy, but if you’re looking for something different, it’s a fairly enjoyable read.