The Marionettes series is my most adult to date, and the books are graphic in every sense of the word. The following triggers apply to the series as whole, though some are more prevalent in certain installments than others.

smoking, addiction; imagery similar to self-harm; death, grief, loss of a loved one; abuse, physical, emotional, parental; parental neglect and absence; graphic violence and gore, some relating to animals; graphic descriptions of injuries; sexual coercion/intimidation/dubcon (none relating to the hero/heroine); kidnapping; torture; manipulation.