"A breathtaking novel that gets under the skin of the complexities of love, sex and human nature"-Katie Bishop, author of THE GIRLS OF SUMMER

"A perceptive book about intimacy and desire that feels zingy, original, fresh"-Chloë Ashby, author of SECOND SELF

"Tender, shimmering, elegant, and true... thoughtful and sensual, sexy and cerebral"-Laura Barnett, author of THE VERSIONS OF US

Every relationship has rules. What if they all changed?

Hura and Cillian have a happy, secure marriage and are on the brink of planning a family. But when Hura's teaching career gets derailed, they decide it's time to explore a fantasy: opening up their relationship.

Roses has never been monogamous. Her connection with elusive James-who works all hours as a junior doctor-is electric, and they're falling for each other. But both have secrets that make intimacy feel dangerous, and in a bid to reassert her independence, Roses suggests they sleep with other people.

When these two couples collide, life shifts on its axis and starts to spin out of control. As Roses and James fight to keep the past from overwhelming them, and Cillian and Hura test the limits of trust, they must all decide which lines to draw-and which to cross.

A passionate deconstruction of the complexities of sex, love, honesty and betrayal, OPEN SEASON marks Cassie Werber out as a major new talent.