The Butterfly Effect - Pernille Rygg

Igi Heitmann is grieving for her father - a washed up private eye killed in a hit and run accident - when she stumbles upon a butterfly medallion, incongruous amidst the detritus scattered on her father's desk. This discovery leads to another, altogether more gruesome but seemingly linked: a young woman lying dead in the snow with bullet wounds in her head and a gun in her hand. Drawn on by a swelling determination to piece together the final moments of her father's life, Igi finds herself descending ever deeper into the realms of criminality and corruption, all in the pursuit of the increasingly mystifying truth.