If you didn’t completely understand straight-line wire-crossing in Wired, then Irreversible will do your head in. It deals with time anomalies; namely Katherine Gibbs who’s stuck in a week-long whilst her fiancé, co-workers, and “friends” pretend whatever Leonardo Kaysar wants them to.
An old pal’s time hacker group is trying to extract Kitty from the loop, but their intern unintentionally screws things up massively. And Vesper is a pain in the arse for most of the book, until she shares a moment with Kaysar and some newspaper and they seem an unlikely but cute couple. But we never hear from her again, and I need closure, damn it! Meanwhile, things suck personally for group leader Louise, who’s feeling a bit lonely, but she goes about it in a totally non-emo way that doesn’t grate.
By the way, layers of time appear to be comprised of black ooze and white vapour. Those layers are bewildering, so give up thinking, and just enjoy the ride.