Six of us are going to the island. Only one of us will make it back. That one of us will be me. For friends Riley, Sam, Mia and Scarlett, their trip to Whisper Island was meant to be a once in a lifetime adventure - just four young women, with everything to live for... But as soon as they arrive things start to go wrong. First there is the unexpected arrival of Sammy's drug addict brother and his girlfriend Opal - why are they here? And then the deaths begin. As the dream trip quickly turns into a nightmare, suspicion is high. Are they really alone on the island? Or is there a killer hiding in the shadows? And as each of the girls reveals a dark secret of their own, perhaps the truth is the killer is closer than they think...just a whisper away...