This is a long, long book, and the first in the Palliser
series, though I understand that they mostly stand alone so you don't really have to read them in order. It centers around three women: one married, one single, and one widowed, and for each of them, the central question is the same - do I go with Mr. Dull and Dependable or do I go with Mr. Good Looks Who Will Spend All My Money and Ruin Me?
It might have been a more exciting book if Trollope was a more radical author, but I'm not spoiling too much to say that Trollope was actually a very conservative author. Everyone ultimately Does the Right Thing in a very Victorian way, but not before flirting with impropriety enough to raise the question asked by the title: Can You Forgive Her?
Besides jilted suitors and gentleman wastrels, there is a bit of Parliamentary politics in this book which I believe assumes greater importance in the future volumes.
Anthony Trollope had the gift of narrative and character development, so if your only exposure to Victorian social drama is Charles Dickens, then give Trollope a try. That said, I would probably start with The Way We Live Now
, which I thought was a better book with a more engaging story. I will certainly read more Trollope, but I might not hurry on to the next Palliser novel.