The witness

When Jane Wheeler witnesses her lover Anil's murder, she suddenly finds herself the target of his killer. Rushed to an anonymous police safehouse after an attempt on her life, it soon becomes clear that the man she thought she knew was actually an MI5 informant with important information about an imminent terrorist attack. But while Jane tries to piece together a description of the killer and provide the clues that will identify him and help stop an attack, she doesn't know that the killer has already found out where she is. And now he's coming.