While on a solo flight, she is transported from Texas to Ireland where she meets a stunning Irish local, Liam Tyl. During her visits, he tries to help her unravel the mystery of how she appears and disappears, but their time together is always short lived.
At home, she has no memory of Liam or her travels to Ireland. There are chunks of time that she can't account for--moments with her friends and family. Most importantly, memories with her ailing Mom that can't be replaced.
Liam reaches out to her through letters, and together they discover there are two versions of Willow. Now she must learn how to navigate between her two realities without losing the new love in her life or her family back home. An accident proves that she may be too much like Schrödinger's cat, and leaves Liam and Willow both questioning her survival.