The Shadow in the North (2007)

Sally Lockhart (Billie Piper) now runs her own financial consulting business, while her friends Frederick Garland (J.J. Feild) and Jim Taylor (Matt Smith) have opened a detective agency. But when one of her clients loses money over a vanishing steamship, Sally and the young detectives join forces again. The mystery leads them to a threatened stage magician and a medium with a dark vision. Sally must also face an old enemy.