An advice columnist and a detective search for a killer.

Nelly Knows Mysteries

CrimeTime

Former Boston detective Jeff Jackson teams up with Dr. Zee Madeiras to solve mysteries.

Birdie and Alden Case keep the mystery in their marriage alive by becoming amateur sleuths.

A dedicated archaeologist puts her unique skill set to work solving murders.

Matchmaker Angie Dove hosts a reality series that helps single people find their soul mates.

Contest winners try to solve a fake murder for a grand prize, but the event goes awry when a real murder occurs and secrets are uncovered.

A mystery novelist solves crimes as she travels.

Baker Hannah Swensen and detective Mike Kingston experience engaged life while balancing their busy careers.

Tip-line operator Maddie Moore gets involved in a series of mysteries.

A bright, disciplined and acutely observant former prosecutor finds a new way to help others when she becomes a therapist.

Jennifer Shannon can always be counted on to find treasures on the garage sale circuit; these same bargain-hunting skills help her solve crimes, too.

A baker in a small Minnesota town becomes an amateur sleuth.

A brilliant attorney takes on tough cases.

Shannon Hughes is a renovation contractor in Lighthouse Cove, Ore., where she uses her construction skills to solve crimes.