The film "Secrets to Kill For" does not feature any identifiable LGBTQ+ characters or themes. The narrative focuses entirely on a mystery and family drama, with no mention or depiction of queer representation or related community dynamics within its storyline.

The film 'Secrets to Kill For' does not feature any transsexual characters or explore themes related to gender identity or sexual transformation. The narrative focuses on a murder mystery involving a lifestyle blogger searching for her missing friend, with no indication of transsexual representation in its plot or character arcs.

The movie does not contain any action or adventure elements.

Based on the provided information, there is no indication that any character in "Secrets to Kill For" has an on-screen gender that differs from their established gender in source material or historical record. No characters fit the criteria for a gender swap.

The film is an original screenplay with no prior source material or established characters. Consequently, there are no pre-existing canonical or historically defined character races to compare against the casting choices, thus precluding a race swap.