Jenny Harper & The Satanists - book 1, #2

Two exes are in a race to save Jenny's life. The ghost of her dead ex, Alec and Mark, a detective with issues, and the clock is tickingAccording to her mother, Jenny has a psychic gift, but Jenny disagrees. A gift was something you got at Christmas you could sell on eBay if unwanted and not a ringside seat to a stranger's misery. Jenny may not want her psychic gift, but the Satanist stalking her did, and he wasn't fussed about how he took it.
The only ones that could save her were Detective Mark Bishop, Jenny's ex and the ghost of her previous ex, Alec, if only he could get someone to see him.