The Burning by Jane Casey

A serial killer nicknamed "The Burning Man" is the talk of London. Already claiming four victims, it looks like the fifth is beautiful Rebecca Haworth. DC Maeve Kerrigan is assigned to look into the murder and starts by interviewing Rebecca's friends--Louise, Tilly, and ex-boyfriend, Gil. She also delves into Rebecca's past, including her time at Oxford, where a fellow student died under mysterious circumstances. Soon, Maeve begins to wonder if Rebecca's death is the work of a copycat. The Burning is told through the eyes of both Maeve and Louise and is similar to Tana French's and S.J. Bolton's masterful, Now You See Me.