She has visions... whether she likes it or not. Sometimes Cassie sees events that have previously occurred or will happen in the future. Sometimes she encounters unsettled spirits who need her help. When her father, Detective Tom Hackett, and his new partner, former FBI agent Damien Asante, need assistance solving a dark and puzzling murder, Cassie reluctantly agrees to use her abilities and helps solve some of the city’s most challenging cases.
Tom and Damien investigate the murder of a young schoolteacher, only to discover that her killer is someone very close to home. Cassie realizes that she must deal with Ed Roven once and for all.
Tom and Damien investigate the mysterious death of a vibrant young woman, while Cassie's visions reveal a complicated family story. Cassie also encounters an idol from her childhood in the InBetween and helps him right some past wrongs.
Tom and Damien race to stop a serial pyromaniac before he can strike again. Cassie suspects there's something evil going on with the new bartender at work. Things take a turn for Sally, Damien's comatose girlfriend.
When a serial killer strikes again, Cassie allows her visions to lead Tom and Damien toward the killer, leading to an unexpected twist in the investigation. Cassie also helps an old friend search for peace after the death of a loved one.
Tom and Damien enlist Cassie's help when a mother and her young son mysteriously vanish; when suspicion turns to the woman's husband, Cassie's visions reveal a darker, more vengeful plot. Ed Roven returns with an offer for Cassie.
Cassie visits the hospital where Damien's fiancée is being treated and encounters the spirit of a young boy who needs her help. Her efforts to unravel the mystery of his death lead her to a world of spirits that might be more than she can handle.
Cassie helps her father, Detective Tom Hackett, and his partner, Damien Asante, solve a young woman's murder using her unique psychic powers. She also encounters a supernatural spirit whose evil transcends time.
Tom and Damien track a mysterious killer who has targeted several kids at the same high school. Cassie tries to help a woman solve her own death while her anxious family waits for news about her disappearance.