Question: Man Overboard! is written in the MacGuffin style which uses what?
Context: Man Overboard!  (also known as Cold-Blooded Murder) is a detective novel by Freeman Wills Crofts, first published in 1936.  It is the fifteenth novel in the Inspector French series.  The book is set largely in Northern Ireland, and re-uses two of the characters from the earlier novel "Sir John Magill's Last Journey" (1930) which was set in the same country.  As a MacGuffin, the novel centres on a supposedly newly discovered (though possibly fraudulent) reversible chemical process that converts petrol into an inert form which is much safer for transport and storage.  The potential commercial value of this discovery leads to intrigue, theft and murder, with everything finally solved by Inspector French after his usual dogged legwork and some flashes of inspiration. Man Overboard was an American pop punk band from Mt. Laurel and Williamstown, New Jersey that began in 2008.  Since then, they had released two EPs, an acoustic EP, a split with Boston pop punk band Transit, a compilation and four full-length albums.  Taking influence from such pop punk acts as Blink-182, Saves the Day and Taking Back Sunday, Man Overboard played a brand of upbeat and poppy pop punk with the emotion of 90s emo acts such as The Promise Ring.  The band was signed to Rise Records.  They are well known for their motto within the pop punk scene to "Defend Pop Punk".  On January 28, 2016 they announced a hiatus on their official website. "Man Overboard" is a single by Australian rock/pop group Do-Ré-Mi which was released by Virgin Records in June 1985.  The 7" vinyl version has three tracks, which were written by lead vocalist Deborah Conway, drummer Dorland Bray, bass guitarist Helen Carter and guitarist Stephen Philip.  "Man Overboard" made its first appearance on the 1982 EP "The Waiting Room" and was re-worked and released as a single in 1985 to become a surprise top 5 hit.  It is the first Australian hit to include lyrics referring to anal humour, penis envy and pubic hair; it also had no chorus.  The single version was produced and engineered by Gavin McKillop. "Man overboard!"  is an exclamation given aboard a vessel to indicate that someone (not necessarily a "man" but historically one of the crewmen "manning" the vessel) has fallen off of the ship into the water and is in need of immediate rescue.  Whoever sees the person's fall is to shout, "Man overboard!"  and the call is then to be reported once by every crewmember within earshot, even if they have not seen the victim fall, until everyone on deck has heard and given the same call.  This ensures that all other crewmembers have been alerted to the situation and notifies the officers of the need to act immediately to save the victim.  Pointing continuously at the victim may aid the helmsman in approaching the victim. A man overboard rescue turn is a sailing maneuver usually implemented immediately upon learning of a man overboard.  To maneuver closer to the person's location, implementations of the principles described are: the quick turn (also known as the Q-turn or the figure eight turn), the Anderson turn, the Williamson turn, and the Scharnow turn. In fiction, a MacGuffin (sometimes McGuffin or maguffin) is a plot device in the form of some goal, desired object, or other motivator that the protagonist pursues, often with little or no narrative explanation.  The MacGuffin's importance to the plot is not the object itself, but rather its effect on the characters and their motivations.  The most common type of MacGuffin is a person, place, or thing (such as money or an object of value).  Other more abstract types include victory, glory, survival, power, love, or some unexplained driving force. "Warnings Moving Clockwise" is the third single by Australian rock/pop group Do-Re-Mi released by Virgin Records in December 1985 from their "Domestic Harmony" album.  All three tracks were written by lead vocalist Deborah Conway, drummerDorland Bray, bass guitarist Helen Carter and guitarist Stephen Philip.  First single "Man Overboard" had been a surprise top 5 hit, but "Warnings Moving Clockwise", which was also produced and engineered by Gavin McKillop, did not have any chart success.  When "Man Overboard" was released as a single in UK in 1986, the B-side was "Warnings Moving Clockwise". Man Overboard is the second studio album by American rock band Man Overboard.  After the release of their debut album "Real Talk" (2010), guitarist Wayne Wildrick left the group, resulting in several line-up changes.  In December 2010, the group had signed to independent label Rise Records, and aimed to release another album by fall of next year.  Following Wildrick's return to the band in April 2011, the group began demoing songs for their next album the following month.  With New Found Glory guitarist Steve Klein standing in as producer, the group recorded their second album at Cannon Found Soundation Studios in New Jersey in June.  Following this, the band went on a tour of Europe with Polar Bear Club.  After the album was announced in August 2011, "Dead End Dreams" was made available for streaming later in that month, followed by "Spunn" in mid-September. A MOB, short for Man Overboard Boat, is a small, fast rescue boat which large vessels, especially passenger ferries and cruise ships, use for man overboard situations.  A MOB often has a RIB or similar hull to achieve great speed with stability.  Both outboard engines and inboard pump-jet propulsion are used on MOB's.  A MOB is required to be able to be launched and retrieved quickly, and is usually lowered with one wire. "Man Overboard" is a song by the American rock band Blink-182 released on September 2, 2000 as the lead single from the band's live album, "The Mark, Tom, and Travis Show (The Enema Strikes Back!) " (2000).  "Man Overboard" is the sole studio recording on the release and was originally written during sessions for the band's third album, "Enema of the State".
Answer: plot device